312131424402123 has 16 divisors (see below), whose sum is σ = 419292062931456. Its totient is φ = 206529773933120.

The previous prime is 312131424402113. The next prime is 312131424402167. The reversal of 312131424402123 is 321204424131213.

It is a cyclic number.

It is not a de Polignac number, because 312131424402123 - 2²⁵ = 312131390847691 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312131424402113) 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, 69425583 + ... + 73784648.

It is an arithmetic number, because the mean of its divisors is an integer number (26205753933216).

Almost surely, 2^{312131424402123} is an apocalyptic number.

312131424402123 is a deficient number, since it is larger than the sum of its proper divisors (107160638529333).

312131424402123 is a wasteful number, since it uses less digits than its factorization.

312131424402123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143215674.

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 312131424402123 its reverse (321204424131213), we get a palindrome (633335848533336).

The spelling of 312131424402123 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred twenty-four million, four hundred two thousand, one hundred twenty-three".