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12313132012 = 2213722469219
BaseRepresentation
bin10110111011110101…
…10111101111101100
31011210010022220201101
423131322313233230
5200204130211022
65353453052444
7614062616026
oct133572675754
934703286641
1012313132012
115249495365
122477787124
131212cac93c
1484b44d016
154c0ec5627
hex2ddeb7bec

12313132012 has 12 divisors (see below), whose sum is σ = 21705266520. Its totient is φ = 6111627296.

The previous prime is 12313131997. The next prime is 12313132021. The reversal of 12313132012 is 21023131321.

It is a super-2 number, since 2×123131320122 (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11234062 + ... + 11235157.

It is an arithmetic number, because the mean of its divisors is an integer number (1808772210).

Almost surely, 212313132012 is an apocalyptic number.

It is an amenable number.

12313132012 is a deficient number, since it is larger than the sum of its proper divisors (9392134508).

12313132012 is a wasteful number, since it uses less digits than its factorization.

12313132012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22469360 (or 22469358 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12313132012 its reverse (21023131321), we get a palindrome (33336263333).

The spelling of 12313132012 in words is "twelve billion, three hundred thirteen million, one hundred thirty-two thousand, twelve".

Divisors: 1 2 4 137 274 548 22469219 44938438 89876876 3078283003 6156566006 12313132012