13187562506231 has 2 divisors, whose sum is σ = 13187562506232. Its totient is φ = 13187562506230.

The previous prime is 13187562506221. The next prime is 13187562506257. The reversal of 13187562506231 is 13260526578131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13187562506231 - 2²⁶ = 13187495397367 is a prime.

It is a super-2 number, since 2×13187562506231² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13187562506231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13187562506221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6593781253115 + 6593781253116.

It is an arithmetic number, because the mean of its divisors is an integer number (6593781253116).

Almost surely, 2^{13187562506231} is an apocalyptic number.

13187562506231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13187562506231 is an equidigital number, since it uses as much as digits as its factorization.

13187562506231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The spelling of 13187562506231 in words is "thirteen trillion, one hundred eighty-seven billion, five hundred sixty-two million, five hundred six thousand, two hundred thirty-one".