13012857923 has 8 divisors (see below), whose sum is σ = 14024474016. Its totient is φ = 12002760000.

The previous prime is 13012857911. The next prime is 13012858007. The reversal of 13012857923 is 32975821031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13012857923 - 2¹⁸ = 13012595779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13012857023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361703 + ... + 396048.

It is an arithmetic number, because the mean of its divisors is an integer number (1753059252).

Almost surely, 2^13012857923 is an apocalyptic number.

13012857923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13012857923 is a deficient number, since it is larger than the sum of its proper divisors (1011616093).

13012857923 is a wasteful number, since it uses less digits than its factorization.

13012857923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759085.

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 13012857923 in words is "thirteen billion, twelve million, eight hundred fifty-seven thousand, nine hundred twenty-three".