312321210022133 has 4 divisors (see below), whose sum is σ = 336345918485388. Its totient is φ = 288296501558880.

The previous prime is 312321210022111. The next prime is 312321210022147. The reversal of 312321210022133 is 331220012123213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19263171774289 + 293058038247844 = 4388983^2 + 17118938^2 .

It is a cyclic number.

It is not a de Polignac number, because 312321210022133 - 2²⁸ = 312320941586677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312321210022933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12012354231608 + ... + 12012354231633.

It is an arithmetic number, because the mean of its divisors is an integer number (84086479621347).

Almost surely, 2^{312321210022133} is an apocalyptic number.

It is an amenable number.

312321210022133 is a deficient number, since it is larger than the sum of its proper divisors (24024708463255).

312321210022133 is a wasteful number, since it uses less digits than its factorization.

312321210022133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24024708463254.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 312321210022133 its reverse (331220012123213), we get a palindrome (643541222145346).

The spelling of 312321210022133 in words is "three hundred twelve trillion, three hundred twenty-one billion, two hundred ten million, twenty-two thousand, one hundred thirty-three".