131403633320 has 32 divisors (see below), whose sum is σ = 297785224800. Its totient is φ = 52183311168.

The previous prime is 131403633259. The next prime is 131403633331. The reversal of 131403633320 is 23336304131.

It is a happy 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, 11811314 + ... + 11822433.

It is an arithmetic number, because the mean of its divisors is an integer number (9305788275).

Almost surely, 2^131403633320 is an apocalyptic number.

131403633320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403633320 is an abundant number, since it is smaller than the sum of its proper divisors (166381591480).

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

131403633320 is a wasteful number, since it uses less digits than its factorization.

131403633320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23633897 (or 23633893 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 131403633320 its reverse (23336304131), we get a palindrome (154739937451).

The spelling of 131403633320 in words is "one hundred thirty-one billion, four hundred three million, six hundred thirty-three thousand, three hundred twenty".