131113881 has 12 divisors (see below), whose sum is σ = 190175700. Its totient is φ = 87045120.

The previous prime is 131113847. The next prime is 131113883. The reversal of 131113881 is 188311131.

It can be written as a sum of positive squares in 2 ways, for example, as 53056656 + 78057225 = 7284^2 + 8835^2 .

It is not a de Polignac number, because 131113881 - 2¹⁷ = 130982809 is a prime.

It is a super-2 number, since 2×131113881² = 34381699581764322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131113883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28056 + ... + 32393.

It is an arithmetic number, because the mean of its divisors is an integer number (15847975).

Almost surely, 2^131113881 is an apocalyptic number.

It is an amenable number.

131113881 is a deficient number, since it is larger than the sum of its proper divisors (59061819).

131113881 is a wasteful number, since it uses less digits than its factorization.

131113881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60696 (or 60693 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 131113881 is about 11450.4969761142. The cubic root of 131113881 is about 508.0224340125.

The spelling of 131113881 in words is "one hundred thirty-one million, one hundred thirteen thousand, eight hundred eighty-one".