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101012112001020 = 223511198257771971
BaseRepresentation
bin10110111101111010110111…
…000011011100011111111100
3111020122122220202121100122010
4112331322313003130133330
5101214440301133013040
6554500153523251220
730163612205202513
oct2675726703343774
9436578822540563
10101012112001020
112a204aa5931770
12b3b49a7b19b10
13444952a82c39c
141ad3025aad67a
15ba285452be80
hex5bdeb70dc7fc

101012112001020 has 96 divisors (see below), whose sum is σ = 308548043548416. Its totient is φ = 24487629491200.

The previous prime is 101012112000991. The next prime is 101012112001027. The reversal of 101012112001020 is 20100211210101.

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

It is a junction number, because it is equal to n+sod(n) for n = 101012112000987 and 101012112001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101012112001027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130463635 + ... + 131235605.

It is an arithmetic number, because the mean of its divisors is an integer number (3214042120296).

Almost surely, 2101012112001020 is an apocalyptic number.

101012112001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101012112001020 is an abundant number, since it is smaller than the sum of its proper divisors (207535931547396).

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

101012112001020 is a wasteful number, since it uses less digits than its factorization.

101012112001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970251 (or 970249 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 101012112001020 its reverse (20100211210101), we get a palindrome (121112323211121).

The spelling of 101012112001020 in words is "one hundred one trillion, twelve billion, one hundred twelve million, one thousand, twenty".

Divisors: 1 2 3 4 5 6 10 11 12 15 20 22 30 33 44 55 60 66 110 132 165 220 330 660 198257 396514 594771 771971 793028 991285 1189542 1543942 1982570 2180827 2315913 2379084 2973855 3087884 3859855 3965140 4361654 4631826 5947710 6542481 7719710 8491681 8723308 9263652 10904135 11579565 11895420 13084962 15439420 16983362 21808270 23159130 25475043 26169924 32712405 33966724 42458405 43616540 46318260 50950086 65424810 84916810 101900172 127375215 130849620 169833620 254750430 509500860 153048654547 306097309094 459145963641 612194618188 765243272735 918291927282 1530486545470 1683535200017 1836583854564 2295729818205 3060973090940 3367070400034 4591459636410 5050605600051 6734140800068 8417676000085 9182919272820 10101211200102 16835352000170 20202422400204 25253028000255 33670704000340 50506056000510 101012112001020