13157103397 has 2 divisors, whose sum is σ = 13157103398. Its totient is φ = 13157103396.

The previous prime is 13157103391. The next prime is 13157103431. The reversal of 13157103397 is 79330175131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7048274116 + 6108829281 = 83954^2 + 78159^2 .

It is a cyclic number.

It is not a de Polignac number, because 13157103397 - 2¹⁵ = 13157070629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13157103391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6578551698 + 6578551699.

It is an arithmetic number, because the mean of its divisors is an integer number (6578551699).

Almost surely, 2^13157103397 is an apocalyptic number.

It is an amenable number.

13157103397 is a deficient number, since it is larger than the sum of its proper divisors (1).

13157103397 is an equidigital number, since it uses as much as digits as its factorization.

13157103397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 59535, while the sum is 40.

The spelling of 13157103397 in words is "thirteen billion, one hundred fifty-seven million, one hundred three thousand, three hundred ninety-seven".