13313211157 has 2 divisors, whose sum is σ = 13313211158. Its totient is φ = 13313211156.

The previous prime is 13313211127. The next prime is 13313211169. The reversal of 13313211157 is 75111231331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7452696241 + 5860514916 = 86329^2 + 76554^2 .

It is a cyclic number.

It is not a de Polignac number, because 13313211157 - 2⁷ = 13313211029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13313211127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6656605578 + 6656605579.

It is an arithmetic number, because the mean of its divisors is an integer number (6656605579).

Almost surely, 2^13313211157 is an apocalyptic number.

It is an amenable number.

13313211157 is a deficient number, since it is larger than the sum of its proper divisors (1).

13313211157 is an equidigital number, since it uses as much as digits as its factorization.

13313211157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 28.

Adding to 13313211157 its reverse (75111231331), we get a palindrome (88424442488).

The spelling of 13313211157 in words is "thirteen billion, three hundred thirteen million, two hundred eleven thousand, one hundred fifty-seven".