312131340231422 has 64 divisors (see below), whose sum is σ = 503379548179200. Its totient is φ = 144731551680000.

The previous prime is 312131340231413. The next prime is 312131340231521. The reversal of 312131340231422 is 224132043131213.

It is a super-2 number, since 2×312131340231422² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127355297 + ... + 129783027.

It is an arithmetic number, because the mean of its divisors is an integer number (7865305440300).

Almost surely, 2^{312131340231422} is an apocalyptic number.

312131340231422 is a deficient number, since it is larger than the sum of its proper divisors (191248207947778).

312131340231422 is a wasteful number, since it uses less digits than its factorization.

312131340231422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428233.

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 312131340231422 its reverse (224132043131213), we get a palindrome (536263383362635).

The spelling of 312131340231422 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred forty million, two hundred thirty-one thousand, four hundred twenty-two".