312232213357 has 2 divisors, whose sum is σ = 312232213358. Its totient is φ = 312232213356.

The previous prime is 312232213231. The next prime is 312232213369. The reversal of 312232213357 is 753312232213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312161333796 + 70879561 = 558714^2 + 8419^2 .

It is a cyclic number.

It is not a de Polignac number, because 312232213357 - 2³⁵ = 277872474989 is a prime.

It is a super-2 number, since 2×312232213357² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312232253357) by changing a digit.

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 as a sum of consecutive naturals, namely, 156116106678 + 156116106679.

It is an arithmetic number, because the mean of its divisors is an integer number (156116106679).

Almost surely, 2^312232213357 is an apocalyptic number.

It is an amenable number.

312232213357 is a deficient number, since it is larger than the sum of its proper divisors (1).

312232213357 is an equidigital number, since it uses as much as digits as its factorization.

312232213357 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 34.

The spelling of 312232213357 in words is "three hundred twelve billion, two hundred thirty-two million, two hundred thirteen thousand, three hundred fifty-seven".