12312551793 has 4 divisors (see below), whose sum is σ = 16416735728. Its totient is φ = 8208367860.

The previous prime is 12312551761. The next prime is 12312551803. The reversal of 12312551793 is 39715521321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12312551793 - 2⁵ = 12312551761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312551723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2052091963 + ... + 2052091968.

It is an arithmetic number, because the mean of its divisors is an integer number (4104183932).

Almost surely, 2^12312551793 is an apocalyptic number.

It is an amenable number.

12312551793 is a deficient number, since it is larger than the sum of its proper divisors (4104183935).

12312551793 is an equidigital number, since it uses as much as digits as its factorization.

12312551793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4104183934.

The product of its digits is 56700, while the sum is 39.

The spelling of 12312551793 in words is "twelve billion, three hundred twelve million, five hundred fifty-one thousand, seven hundred ninety-three".