131403432230520 has 64 divisors (see below), whose sum is σ = 403825181991840. Its totient is φ = 34186258790400.

The previous prime is 131403432230519. The next prime is 131403432230531. The reversal of 131403432230520 is 25032234304131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13354002421 + ... + 13354012260.

Almost surely, 2^{131403432230520} is an apocalyptic number.

131403432230520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131403432230520 is an abundant number, since it is smaller than the sum of its proper divisors (272421749761320).

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

131403432230520 is a wasteful number, since it uses less digits than its factorization.

131403432230520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26708014736 (or 26708014732 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 131403432230520 its reverse (25032234304131), we get a palindrome (156435666534651).

The spelling of 131403432230520 in words is "one hundred thirty-one trillion, four hundred three billion, four hundred thirty-two million, two hundred thirty thousand, five hundred twenty".