13113231133997 has 2 divisors, whose sum is σ = 13113231133998. Its totient is φ = 13113231133996.

The previous prime is 13113231133927. The next prime is 13113231134021. The reversal of 13113231133997 is 79933113231131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12339897326761 + 773333807236 = 3512819^2 + 879394^2 .

It is a cyclic number.

It is not a de Polignac number, because 13113231133997 - 2³⁸ = 12838353227053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113231133927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556615566998 + 6556615566999.

It is an arithmetic number, because the mean of its divisors is an integer number (6556615566999).

Almost surely, 2^{13113231133997} is an apocalyptic number.

It is an amenable number.

13113231133997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113231133997 is an equidigital number, since it uses as much as digits as its factorization.

13113231133997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 47.

The spelling of 13113231133997 in words is "thirteen trillion, one hundred thirteen billion, two hundred thirty-one million, one hundred thirty-three thousand, nine hundred ninety-seven".