312131401432342 has 16 divisors (see below), whose sum is σ = 471810785170032. Its totient is φ = 154861340008960.

The previous prime is 312131401432339. The next prime is 312131401432397. The reversal of 312131401432342 is 243234104131213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312131401432298 and 312131401432307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46951963 + ... + 53185990.

It is an arithmetic number, because the mean of its divisors is an integer number (29488174073127).

Almost surely, 2^{312131401432342} is an apocalyptic number.

312131401432342 is a deficient number, since it is larger than the sum of its proper divisors (159679383737690).

312131401432342 is a wasteful number, since it uses less digits than its factorization.

312131401432342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100149983.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 312131401432342 its reverse (243234104131213), we get a palindrome (555365505563555).

The spelling of 312131401432342 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred one million, four hundred thirty-two thousand, three hundred forty-two".