312131324013442 has 32 divisors (see below), whose sum is σ = 482808287549952. Its totient is φ = 151259851965504.

The previous prime is 312131324013413. The next prime is 312131324013473. The reversal of 312131324013442 is 244310423131213.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 312131324013398 and 312131324013407.

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, 756664788 + ... + 757077184.

It is an arithmetic number, because the mean of its divisors is an integer number (15087758985936).

Almost surely, 2^{312131324013442} is an apocalyptic number.

312131324013442 is a deficient number, since it is larger than the sum of its proper divisors (170676963536510).

312131324013442 is a wasteful number, since it uses less digits than its factorization.

312131324013442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 490722.

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

Adding to 312131324013442 its reverse (244310423131213), we get a palindrome (556441747144655).

The spelling of 312131324013442 in words is "three hundred twelve trillion, one hundred thirty-one billion, three hundred twenty-four million, thirteen thousand, four hundred forty-two".