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12313221332310 = 2335118453385001
BaseRepresentation
bin1011001100101110010100…
…1011101111110101010110
31121121010120120021101212000
42303023211023233311112
53103214434130113220
642104341002140130
72410413050265243
oct263134513576526
947533516241760
1012313221332310
113a1800a489818
12146a474ab1646
136b4193706142
14307d6aa225ca
151654661a1390
hexb32e52efd56

12313221332310 has 64 divisors (see below), whose sum is σ = 32835619373760. Its totient is φ = 3283489440000.

The previous prime is 12313221332273. The next prime is 12313221332317. The reversal of 12313221332310 is 1323312231321.

12313221332310 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 322 + 1 + 3 + 323 + 10 = 666.

It is a super-2 number, since 2×123132213323102 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12313221332317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31789810 + ... + 32174810.

It is an arithmetic number, because the mean of its divisors is an integer number (513056552715).

Almost surely, 212313221332310 is an apocalyptic number.

12313221332310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12313221332310 is an abundant number, since it is smaller than the sum of its proper divisors (20522398041450).

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

12313221332310 is a wasteful number, since it uses less digits than its factorization.

12313221332310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503470 (or 503464 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 12313221332310 its reverse (1323312231321), we get a palindrome (13636533563631).

The spelling of 12313221332310 in words is "twelve trillion, three hundred thirteen billion, two hundred twenty-one million, three hundred thirty-two thousand, three hundred ten".

Divisors: 1 2 3 5 6 9 10 15 18 27 30 45 54 90 135 270 118453 236906 355359 385001 592265 710718 770002 1066077 1155003 1184530 1776795 1925005 2132154 2310006 3198231 3465009 3553590 3850010 5330385 5775015 6396462 6930018 10395027 10660770 11550030 15991155 17325045 20790054 31982310 34650090 51975135 103950270 45604523453 91209046906 136813570359 228022617265 273627140718 410440711077 456045234530 684067851795 820881422154 1231322133231 1368135703590 2052203555385 2462644266462 4104407110770 6156610666155 12313221332310