131012112 has 80 divisors (see below), whose sum is σ = 421972992. Its totient is φ = 34028160.

The previous prime is 131012093. The next prime is 131012113. The reversal of 131012112 is 211210131.

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

It is not an unprimeable number, because it can be changed into a prime (131012113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14028 + ... + 21419.

Almost surely, 2^131012112 is an apocalyptic number.

131012112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131012112 is an abundant number, since it is smaller than the sum of its proper divisors (290960880).

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

131012112 is a wasteful number, since it uses less digits than its factorization.

131012112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35476 (or 35470 counting only the distinct ones).

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

The square root of 131012112 is about 11446.0522452066. The cubic root of 131012112 is about 507.8909597119.

Adding to 131012112 its reverse (211210131), we get a palindrome (342222243).

The spelling of 131012112 in words is "one hundred thirty-one million, twelve thousand, one hundred twelve".