312123321055022 has 16 divisors (see below), whose sum is σ = 472475987053200. Its totient is φ = 154637530729920.

The previous prime is 312123321055001. The next prime is 312123321055033. The reversal of 312123321055022 is 220550123321213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312123321055022.

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, 1551238997 + ... + 1551440192.

It is an arithmetic number, because the mean of its divisors is an integer number (29529749190825).

Almost surely, 2^{312123321055022} is an apocalyptic number.

312123321055022 is a deficient number, since it is larger than the sum of its proper divisors (160352665998178).

312123321055022 is a wasteful number, since it uses less digits than its factorization.

312123321055022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102679651.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 312123321055022 its reverse (220550123321213), we get a palindrome (532673444376235).

The spelling of 312123321055022 in words is "three hundred twelve trillion, one hundred twenty-three billion, three hundred twenty-one million, fifty-five thousand, twenty-two".