13311121297 has 2 divisors, whose sum is σ = 13311121298. Its totient is φ = 13311121296.

The previous prime is 13311121277. The next prime is 13311121337. The reversal of 13311121297 is 79212111331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13310006161 + 1115136 = 115369^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 13311121297 - 2¹¹ = 13311119249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13311121277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655560648 + 6655560649.

It is an arithmetic number, because the mean of its divisors is an integer number (6655560649).

Almost surely, 2^13311121297 is an apocalyptic number.

It is an amenable number.

13311121297 is a deficient number, since it is larger than the sum of its proper divisors (1).

13311121297 is an equidigital number, since it uses as much as digits as its factorization.

13311121297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 31.

The spelling of 13311121297 in words is "thirteen billion, three hundred eleven million, one hundred twenty-one thousand, two hundred ninety-seven".