130993831 has 2 divisors, whose sum is σ = 130993832. Its totient is φ = 130993830.

The previous prime is 130993813. The next prime is 130993861. The reversal of 130993831 is 138399031.

Together with previous prime (130993813) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130993831 - 2⁵ = 130993799 is a prime.

It is a super-2 number, since 2×130993831² = 34318767520113122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130993861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65496915 + 65496916.

It is an arithmetic number, because the mean of its divisors is an integer number (65496916).

Almost surely, 2^130993831 is an apocalyptic number.

130993831 is a deficient number, since it is larger than the sum of its proper divisors (1).

130993831 is an equidigital number, since it uses as much as digits as its factorization.

130993831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 130993831 is about 11445.2536450705. The cubic root of 130993831 is about 507.8673354673.

The spelling of 130993831 in words is "one hundred thirty million, nine hundred ninety-three thousand, eight hundred thirty-one".