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1312101101100 = 2235213743174071
BaseRepresentation
bin10011000101111111010…
…100011110111000101100
311122102202120201002012210
4103011333110132320230
5132444140340213400
62442434304130420
7163540042224456
oct23057724367054
94572676632183
101312101101100
11466505957599
12192364006a10
13969661999aa
14477127a32d6
15241e64b6950
hex1317f51ee2c

1312101101100 has 144 divisors (see below), whose sum is σ = 3832980673536. Its totient is φ = 346529088000.

The previous prime is 1312101101033. The next prime is 1312101101123. The reversal of 1312101101100 is 11011012131.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17677065 + ... + 17751135.

It is an arithmetic number, because the mean of its divisors is an integer number (26617921344).

Almost surely, 21312101101100 is an apocalyptic number.

1312101101100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312101101100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1916490336768).

1312101101100 is an abundant number, since it is smaller than the sum of its proper divisors (2520879572436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312101101100 is a wasteful number, since it uses less digits than its factorization.

1312101101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74656 (or 74649 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 1312101101100 its reverse (11011012131), we get a palindrome (1323112113231).

The spelling of 1312101101100 in words is "one trillion, three hundred twelve billion, one hundred one million, one hundred one thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 137 150 274 300 411 431 548 685 822 862 1293 1370 1644 1724 2055 2155 2586 2740 3425 4110 4310 5172 6465 6850 8220 8620 10275 10775 12930 13700 20550 21550 25860 32325 41100 43100 59047 64650 74071 118094 129300 148142 177141 222213 236188 295235 296284 354282 370355 444426 590470 708564 740710 885705 888852 1111065 1180940 1476175 1481420 1771410 1851775 2222130 2952350 3542820 3703550 4428525 4444260 5555325 5904700 7407100 8857050 10147727 11110650 17714100 20295454 22221300 30443181 31924601 40590908 50738635 60886362 63849202 95773803 101477270 121772724 127698404 152215905 159623005 191547606 202954540 253693175 304431810 319246010 383095212 478869015 507386350 608863620 638492020 761079525 798115025 957738030 1014772700 1522159050 1596230050 1915476060 2394345075 3044318100 3192460100 4373670337 4788690150 8747340674 9577380300 13121011011 17494681348 21868351685 26242022022 43736703370 52484044044 65605055055 87473406740 109341758425 131210110110 218683516850 262420220220 328025275275 437367033700 656050550550 1312101101100