312332424310021 has 2 divisors, whose sum is σ = 312332424310022. Its totient is φ = 312332424310020.

The previous prime is 312332424309989. The next prime is 312332424310037. The reversal of 312332424310021 is 120013424233213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312317645045121 + 14779264900 = 17672511^2 + 121570^2 .

It is a cyclic number.

It is not a de Polignac number, because 312332424310021 - 2⁵ = 312332424309989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312332424310321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156166212155010 + 156166212155011.

It is an arithmetic number, because the mean of its divisors is an integer number (156166212155011).

Almost surely, 2^{312332424310021} is an apocalyptic number.

It is an amenable number.

312332424310021 is a deficient number, since it is larger than the sum of its proper divisors (1).

312332424310021 is an equidigital number, since it uses as much as digits as its factorization.

312332424310021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 312332424310021 its reverse (120013424233213), we get a palindrome (432345848543234).

The spelling of 312332424310021 in words is "three hundred twelve trillion, three hundred thirty-two billion, four hundred twenty-four million, three hundred ten thousand, twenty-one".