131212032 has 72 divisors (see below), whose sum is σ = 399119616. Its totient is φ = 37487616.

The previous prime is 131212031. The next prime is 131212093. The reversal of 131212032 is 230212131.

It is not an unprimeable number, because it can be changed into a prime (131212031) 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, 6828 + ... + 17579.

It is an arithmetic number, because the mean of its divisors is an integer number (5543328).

Almost surely, 2^131212032 is an apocalyptic number.

131212032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131212032 is an abundant number, since it is smaller than the sum of its proper divisors (267907584).

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

131212032 is an equidigital number, since it uses as much as digits as its factorization.

131212032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24433 (or 24419 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131212032 is about 11454.7820581624. The cubic root of 131212032 is about 508.1491698250.

Adding to 131212032 its reverse (230212131), we get a palindrome (361424163).

Subtracting 131212032 from its reverse (230212131), we obtain a palindrome (99000099).

The spelling of 131212032 in words is "one hundred thirty-one million, two hundred twelve thousand, thirty-two".