12312907691 has 8 divisors (see below), whose sum is σ = 14108072160. Its totient is φ = 10526787648.

The previous prime is 12312907681. The next prime is 12312907697. The reversal of 12312907691 is 19670921321.

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 12312907691 - 2²² = 12308713387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12312907697) 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, 2258186 + ... + 2263631.

It is an arithmetic number, because the mean of its divisors is an integer number (1763509020).

Almost surely, 2^12312907691 is an apocalyptic number.

12312907691 is a deficient number, since it is larger than the sum of its proper divisors (1795164469).

12312907691 is an equidigital number, since it uses as much as digits as its factorization.

12312907691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4522213.

The product of its (nonzero) digits is 40824, while the sum is 41.

The spelling of 12312907691 in words is "twelve billion, three hundred twelve million, nine hundred seven thousand, six hundred ninety-one".