331238361131 has 2 divisors, whose sum is σ = 331238361132. Its totient is φ = 331238361130.

The previous prime is 331238361127. The next prime is 331238361151. The reversal of 331238361131 is 131163832133.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 331238361131 - 2² = 331238361127 is a prime.

It is a super-2 number, since 2×331238361131² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331238361091 and 331238361100.

It is not a weakly prime, because it can be changed into another prime (331238361151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165619180565 + 165619180566.

It is an arithmetic number, because the mean of its divisors is an integer number (165619180566).

Almost surely, 2^331238361131 is an apocalyptic number.

331238361131 is a deficient number, since it is larger than the sum of its proper divisors (1).

331238361131 is an equidigital number, since it uses as much as digits as its factorization.

331238361131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The spelling of 331238361131 in words is "three hundred thirty-one billion, two hundred thirty-eight million, three hundred sixty-one thousand, one hundred thirty-one".