131321132 has 12 divisors (see below), whose sum is σ = 230844096. Its totient is φ = 65365680.

The previous prime is 131321131. The next prime is 131321167. The reversal of 131321132 is 231123131.

It is a super-2 number, since 2×131321132² = 34490479419522848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131321132.

It is not an unprimeable number, because it can be changed into a prime (131321131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72719 + ... + 74502.

It is an arithmetic number, because the mean of its divisors is an integer number (19237008).

Almost surely, 2^131321132 is an apocalyptic number.

It is an amenable number.

131321132 is a deficient number, since it is larger than the sum of its proper divisors (99522964).

131321132 is a wasteful number, since it uses less digits than its factorization.

131321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147448 (or 147446 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 131321132 is about 11459.5432718761. The cubic root of 131321132 is about 508.2899691994.

Adding to 131321132 its reverse (231123131), we get a palindrome (362444263).

The spelling of 131321132 in words is "one hundred thirty-one million, three hundred twenty-one thousand, one hundred thirty-two".