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12431357361 = 331732661391
BaseRepresentation
bin10111001001111011…
…10111010110110001
31012002100210101102000
423210331313112301
5200424411413421
65413315044213
7620026536243
oct134475672661
935070711360
1012431357361
1152aa1a4865
1224ab2a0669
131231634b77
1485d026093
154cb57a226
hex2e4f775b1

12431357361 has 16 divisors (see below), whose sum is σ = 18523288320. Its totient is φ = 8239663440.

The previous prime is 12431357359. The next prime is 12431357363. The reversal of 12431357361 is 16375313421.

12431357361 is a `hidden beast` number, since 1 + 24 + 3 + 1 + 3 + 573 + 61 = 666.

It is an interprime number because it is at equal distance from previous prime (12431357359) and next prime (12431357363).

It is not a de Polignac number, because 12431357361 - 21 = 12431357359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12431357363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1326025 + ... + 1335366.

It is an arithmetic number, because the mean of its divisors is an integer number (1157705520).

Almost surely, 212431357361 is an apocalyptic number.

It is an amenable number.

12431357361 is a deficient number, since it is larger than the sum of its proper divisors (6091930959).

12431357361 is a wasteful number, since it uses less digits than its factorization.

12431357361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661573 (or 2661567 counting only the distinct ones).

The product of its digits is 45360, while the sum is 36.

The spelling of 12431357361 in words is "twelve billion, four hundred thirty-one million, three hundred fifty-seven thousand, three hundred sixty-one".

Divisors: 1 3 9 27 173 519 1557 4671 2661391 7984173 23952519 71857557 460420643 1381261929 4143785787 12431357361