131242131 has 12 divisors (see below), whose sum is σ = 189691008. Its totient is φ = 87439824.

The previous prime is 131242129. The next prime is 131242157.

131242131 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 131242131 - 2¹ = 131242129 is a prime.

It is a super-2 number, since 2×131242131² = 34448993898842322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131242931) 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, 14926 + ... + 22028.

It is an arithmetic number, because the mean of its divisors is an integer number (15807584).

Almost surely, 2^131242131 is an apocalyptic number.

131242131 is a deficient number, since it is larger than the sum of its proper divisors (58448877).

131242131 is a wasteful number, since it uses less digits than its factorization.

131242131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9162 (or 9159 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 131242131 is about 11456.0958009262. The cubic root of 131242131 is about 508.1880219849.

The spelling of 131242131 in words is "one hundred thirty-one million, two hundred forty-two thousand, one hundred thirty-one".