13121297207 has 2 divisors, whose sum is σ = 13121297208. Its totient is φ = 13121297206.

The previous prime is 13121297197. The next prime is 13121297249. The reversal of 13121297207 is 70279212131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13121297207 - 2⁶ = 13121297143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13121297257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560648603 + 6560648604.

It is an arithmetic number, because the mean of its divisors is an integer number (6560648604).

Almost surely, 2^13121297207 is an apocalyptic number.

13121297207 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121297207 is an equidigital number, since it uses as much as digits as its factorization.

13121297207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The spelling of 13121297207 in words is "thirteen billion, one hundred twenty-one million, two hundred ninety-seven thousand, two hundred seven".