331379420843 has 2 divisors, whose sum is σ = 331379420844. Its totient is φ = 331379420842.

The previous prime is 331379420839. The next prime is 331379420881. The reversal of 331379420843 is 348024973133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331379420843 - 2² = 331379420839 is a prime.

It is not a weakly prime, because it can be changed into another prime (331379426843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165689710421 + 165689710422.

It is an arithmetic number, because the mean of its divisors is an integer number (165689710422).

Almost surely, 2^331379420843 is an apocalyptic number.

331379420843 is a deficient number, since it is larger than the sum of its proper divisors (1).

331379420843 is an equidigital number, since it uses as much as digits as its factorization.

331379420843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1306368, while the sum is 47.

The spelling of 331379420843 in words is "three hundred thirty-one billion, three hundred seventy-nine million, four hundred twenty thousand, eight hundred forty-three".