131237112 has 32 divisors (see below), whose sum is σ = 328406400. Its totient is φ = 43703904.

The previous prime is 131237111. The next prime is 131237131. The reversal of 131237112 is 211732131.

It is a happy number.

It is a super-2 number, since 2×131237112² = 34446359132201088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131237111) 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, 32839 + ... + 36617.

It is an arithmetic number, because the mean of its divisors is an integer number (10262700).

Almost surely, 2^131237112 is an apocalyptic number.

131237112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131237112 is an abundant number, since it is smaller than the sum of its proper divisors (197169288).

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

131237112 is a wasteful number, since it uses less digits than its factorization.

131237112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5235 (or 5231 counting only the distinct ones).

The product of its digits is 252, while the sum is 21.

The square root of 131237112 is about 11455.8767451470. The cubic root of 131237112 is about 508.1815438106.

Adding to 131237112 its reverse (211732131), we get a palindrome (342969243).

The spelling of 131237112 in words is "one hundred thirty-one million, two hundred thirty-seven thousand, one hundred twelve".