131051331 has 16 divisors (see below), whose sum is σ = 197443200. Its totient is φ = 85885704.

The previous prime is 131051321. The next prime is 131051339. The reversal of 131051331 is 133150131.

It is not a de Polignac number, because 131051331 - 2⁹ = 131050819 is a prime.

It is a super-2 number, since 2×131051331² = 34348902713743122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131051339) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39541 + ... + 42726.

It is an arithmetic number, because the mean of its divisors is an integer number (12340200).

Almost surely, 2^131051331 is an apocalyptic number.

131051331 is a deficient number, since it is larger than the sum of its proper divisors (66391869).

131051331 is an equidigital number, since it uses as much as digits as its factorization.

131051331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82335 (or 82329 counting only the distinct ones).

The product of its (nonzero) digits is 135, while the sum is 18.

The square root of 131051331 is about 11447.7653277834. The cubic root of 131051331 is about 507.9416343861.

The spelling of 131051331 in words is "one hundred thirty-one million, fifty-one thousand, three hundred thirty-one".