13131230185639 has 2 divisors, whose sum is σ = 13131230185640. Its totient is φ = 13131230185638.

The previous prime is 13131230185631. The next prime is 13131230185651. The reversal of 13131230185639 is 93658103213131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131230185639 - 2³ = 13131230185631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13131230185631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565615092819 + 6565615092820.

It is an arithmetic number, because the mean of its divisors is an integer number (6565615092820).

Almost surely, 2^{13131230185639} is an apocalyptic number.

13131230185639 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131230185639 is an equidigital number, since it uses as much as digits as its factorization.

13131230185639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 46.

The spelling of 13131230185639 in words is "thirteen trillion, one hundred thirty-one billion, two hundred thirty million, one hundred eighty-five thousand, six hundred thirty-nine".