131438856032 has 96 divisors (see below), whose sum is σ = 297412819200. Its totient is φ = 56550873600.

The previous prime is 131438856019. The next prime is 131438856047. The reversal of 131438856032 is 230658834131.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8211557 + ... + 8227547.

It is an arithmetic number, because the mean of its divisors is an integer number (3098050200).

Almost surely, 2^131438856032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131438856032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148706409600).

131438856032 is an abundant number, since it is smaller than the sum of its proper divisors (165973963168).

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

131438856032 is a wasteful number, since it uses less digits than its factorization.

131438856032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17260 (or 17252 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 131438856032 in words is "one hundred thirty-one billion, four hundred thirty-eight million, eight hundred fifty-six thousand, thirty-two".