131302144432 has 40 divisors (see below), whose sum is σ = 257006474640. Its totient is φ = 64978348800.

The previous prime is 131302144423. The next prime is 131302144451. The reversal of 131302144432 is 234441203131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131302144432.

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, 5205483 + ... + 5230645.

It is an arithmetic number, because the mean of its divisors is an integer number (6425161866).

Almost surely, 2^131302144432 is an apocalyptic number.

It is an amenable number.

131302144432 is a deficient number, since it is larger than the sum of its proper divisors (125704330208).

131302144432 is a wasteful number, since it uses less digits than its factorization.

131302144432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28501 (or 28495 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 131302144432 its reverse (234441203131), we get a palindrome (365743347563).

The spelling of 131302144432 in words is "one hundred thirty-one billion, three hundred two million, one hundred forty-four thousand, four hundred thirty-two".