331213043040457 has 2 divisors, whose sum is σ = 331213043040458. Its totient is φ = 331213043040456.

The previous prime is 331213043040421. The next prime is 331213043040527. The reversal of 331213043040457 is 754040340312133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 237724468275856 + 93488574764601 = 15418316^2 + 9668949^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331213043040457 is a prime.

It is not a weakly prime, because it can be changed into another prime (331213043080457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165606521520228 + 165606521520229.

It is an arithmetic number, because the mean of its divisors is an integer number (165606521520229).

Almost surely, 2^{331213043040457} is an apocalyptic number.

It is an amenable number.

331213043040457 is a deficient number, since it is larger than the sum of its proper divisors (1).

331213043040457 is an equidigital number, since it uses as much as digits as its factorization.

331213043040457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 362880, while the sum is 40.

The spelling of 331213043040457 in words is "three hundred thirty-one trillion, two hundred thirteen billion, forty-three million, forty thousand, four hundred fifty-seven".