157031419331 has 2 divisors, whose sum is σ = 157031419332. Its totient is φ = 157031419330.

The previous prime is 157031419327. The next prime is 157031419351. The reversal of 157031419331 is 133914130751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157031419331 - 2² = 157031419327 is a prime.

It is a super-2 number, since 2×157031419331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157031419351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78515709665 + 78515709666.

It is an arithmetic number, because the mean of its divisors is an integer number (78515709666).

Almost surely, 2^157031419331 is an apocalyptic number.

157031419331 is a deficient number, since it is larger than the sum of its proper divisors (1).

157031419331 is an equidigital number, since it uses as much as digits as its factorization.

157031419331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The spelling of 157031419331 in words is "one hundred fifty-seven billion, thirty-one million, four hundred nineteen thousand, three hundred thirty-one".