331212211133393 has 2 divisors, whose sum is σ = 331212211133394. Its totient is φ = 331212211133392.

The previous prime is 331212211133387. The next prime is 331212211133429. The reversal of 331212211133393 is 393331112212133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290892911469889 + 40319299663504 = 17055583^2 + 6349748^2 .

It is a cyclic number.

It is not a de Polignac number, because 331212211133393 - 2²⁰ = 331212210084817 is a prime.

It is not a weakly prime, because it can be changed into another prime (331212211153393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165606105566696 + 165606105566697.

It is an arithmetic number, because the mean of its divisors is an integer number (165606105566697).

Almost surely, 2^{331212211133393} is an apocalyptic number.

It is an amenable number.

331212211133393 is a deficient number, since it is larger than the sum of its proper divisors (1).

331212211133393 is an equidigital number, since it uses as much as digits as its factorization.

331212211133393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The spelling of 331212211133393 in words is "three hundred thirty-one trillion, two hundred twelve billion, two hundred eleven million, one hundred thirty-three thousand, three hundred ninety-three".