131210112 has 64 divisors (see below), whose sum is σ = 380223360. Its totient is φ = 39759360.

The previous prime is 131210111. The next prime is 131210113. The reversal of 131210112 is 211012131.

It is an interprime number because it is at equal distance from previous prime (131210111) and next prime (131210113).

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131210111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11308 + ... + 19755.

It is an arithmetic number, because the mean of its divisors is an integer number (5940990).

Almost surely, 2^131210112 is an apocalyptic number.

131210112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131210112 is an abundant number, since it is smaller than the sum of its proper divisors (249013248).

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

131210112 is a wasteful number, since it uses less digits than its factorization.

131210112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31091 (or 31079 counting only the distinct ones).

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

The square root of 131210112 is about 11454.6982500632. The cubic root of 131210112 is about 508.1466912638.

Adding to 131210112 its reverse (211012131), we get a palindrome (342222243).

The spelling of 131210112 in words is "one hundred thirty-one million, two hundred ten thousand, one hundred twelve".