131381012 has 24 divisors (see below), whose sum is σ = 263061120. Its totient is φ = 56242080.

The previous prime is 131381009. The next prime is 131381051. The reversal of 131381012 is 210183131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28937 + ... + 33167.

It is an arithmetic number, because the mean of its divisors is an integer number (10960880).

Almost surely, 2^131381012 is an apocalyptic number.

It is an amenable number.

131381012 is an abundant number, since it is smaller than the sum of its proper divisors (131680108).

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

131381012 is a wasteful number, since it uses less digits than its factorization.

131381012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5351 (or 5349 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 131381012 is about 11462.1556436824. The cubic root of 131381012 is about 508.3672143920.

The spelling of 131381012 in words is "one hundred thirty-one million, three hundred eighty-one thousand, twelve".