312131402241442 has 16 divisors (see below), whose sum is σ = 535139382281472. Its totient is φ = 133756356350880.

The previous prime is 312131402241317. The next prime is 312131402241523. The reversal of 312131402241442 is 244142204131213.

It is a junction number, because it is equal to n+sod(n) for n = 312131402241398 and 312131402241407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1186914643 + ... + 1187177590.

It is an arithmetic number, because the mean of its divisors is an integer number (33446211392592).

Almost surely, 2^{312131402241442} is an apocalyptic number.

312131402241442 is a deficient number, since it is larger than the sum of its proper divisors (223007980040030).

312131402241442 is a wasteful number, since it uses less digits than its factorization.

312131402241442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2374101633.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 312131402241442 its reverse (244142204131213), we get a palindrome (556273606372655).

The spelling of 312131402241442 in words is "three hundred twelve trillion, one hundred thirty-one billion, four hundred two million, two hundred forty-one thousand, four hundred forty-two".