13131432402100 has 36 divisors (see below), whose sum is σ = 28756632265900. Its totient is φ = 5204384213760.

The previous prime is 13131432402061. The next prime is 13131432402181. The reversal of 13131432402100 is 120423413131.

It can be written as a sum of positive squares in 6 ways, for example, as 521575728804 + 12609856673296 = 722202^2 + 3551036^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602348385 + ... + 602370184.

Almost surely, 2^{13131432402100} is an apocalyptic number.

13131432402100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131432402100 is an abundant number, since it is smaller than the sum of its proper divisors (15625199863800).

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

13131432402100 is a wasteful number, since it uses less digits than its factorization.

13131432402100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204718692 (or 1204718685 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13131432402100 its reverse (120423413131), we get a palindrome (13251855815231).

The spelling of 13131432402100 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-two million, four hundred two thousand, one hundred".