131002131 has 16 divisors (see below), whose sum is σ = 198007040. Its totient is φ = 76373280.

The previous prime is 131002129. The next prime is 131002147. The reversal of 131002131 is 131200131.

It is not a de Polignac number, because 131002131 - 2¹ = 131002129 is a prime.

It is a super-2 number, since 2×131002131² = 34323116653082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131002111) 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, 87655 + ... + 89136.

It is an arithmetic number, because the mean of its divisors is an integer number (12375440).

Almost surely, 2^131002131 is an apocalyptic number.

131002131 is a deficient number, since it is larger than the sum of its proper divisors (67004909).

131002131 is a wasteful number, since it uses less digits than its factorization.

131002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176826.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 131002131 is about 11445.6162350482. The cubic root of 131002131 is about 507.8780616973.

Adding to 131002131 its reverse (131200131), we get a palindrome (262202262).

The spelling of 131002131 in words is "one hundred thirty-one million, two thousand, one hundred thirty-one".