312131100310442 has 32 divisors (see below), whose sum is σ = 578466904068480. Its totient is φ = 123304787438400.

The previous prime is 312131100310427. The next prime is 312131100310457. The reversal of 312131100310442 is 244013001131213.

It is an interprime number because it is at equal distance from previous prime (312131100310427) and next prime (312131100310457).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15857087309 + ... + 15857106992.

It is an arithmetic number, because the mean of its divisors is an integer number (18077090752140).

Almost surely, 2^{312131100310442} is an apocalyptic number.

312131100310442 is a deficient number, since it is larger than the sum of its proper divisors (266335803758038).

312131100310442 is a wasteful number, since it uses less digits than its factorization.

312131100310442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31714194366.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 312131100310442 its reverse (244013001131213), we get a palindrome (556144101441655).

The spelling of 312131100310442 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred million, three hundred ten thousand, four hundred forty-two".