331238359139 has 2 divisors, whose sum is σ = 331238359140. Its totient is φ = 331238359138.

The previous prime is 331238359117. The next prime is 331238359141. The reversal of 331238359139 is 931953832133.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331238359139 is a prime.

Together with 331238359141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331238355139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165619179569 + 165619179570.

It is an arithmetic number, because the mean of its divisors is an integer number (165619179570).

Almost surely, 2^331238359139 is an apocalyptic number.

331238359139 is a deficient number, since it is larger than the sum of its proper divisors (1).

331238359139 is an equidigital number, since it uses as much as digits as its factorization.

331238359139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 50.

The spelling of 331238359139 in words is "three hundred thirty-one billion, two hundred thirty-eight million, three hundred fifty-nine thousand, one hundred thirty-nine".