131013312 has 28 divisors (see below), whose sum is σ = 346639896. Its totient is φ = 43671040.

The previous prime is 131013307. The next prime is 131013317. The reversal of 131013312 is 213310131.

It is an interprime number because it is at equal distance from previous prime (131013307) and next prime (131013317).

It is a junction number, because it is equal to n+sod(n) for n = 131013291 and 131013300.

It is not an unprimeable number, because it can be changed into a prime (131013317) 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, 340989 + ... + 341372.

Almost surely, 2^131013312 is an apocalyptic number.

131013312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131013312 is an abundant number, since it is smaller than the sum of its proper divisors (215626584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131013312 is an equidigital number, since it uses as much as digits as its factorization.

131013312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682376 (or 682366 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 131013312 is about 11446.1046649067. The cubic root of 131013312 is about 507.8925103759.

Adding to 131013312 its reverse (213310131), we get a palindrome (344323443).

The spelling of 131013312 in words is "one hundred thirty-one million, thirteen thousand, three hundred twelve".