13131431122390 has 128 divisors (see below), whose sum is σ = 29676845629440. Its totient is φ = 4079036320128.

The previous prime is 13131431122379. The next prime is 13131431122391. The reversal of 13131431122390 is 9322113413131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131431122391) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 175640997 + ... + 175715743.

It is an arithmetic number, because the mean of its divisors is an integer number (231850356480).

Almost surely, 2^{13131431122390} is an apocalyptic number.

13131431122390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131431122390 is an abundant number, since it is smaller than the sum of its proper divisors (16545414507050).

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

13131431122390 is a wasteful number, since it uses less digits than its factorization.

13131431122390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80546.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 13131431122390 in words is "thirteen trillion, one hundred thirty-one billion, four hundred thirty-one million, one hundred twenty-two thousand, three hundred ninety".