13102199977 has 2 divisors, whose sum is σ = 13102199978. Its totient is φ = 13102199976.

The previous prime is 13102199953. The next prime is 13102199989. The reversal of 13102199977 is 77999120131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9936899856 + 3165300121 = 99684^2 + 56261^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13102199977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13102199977.

It is not a weakly prime, because it can be changed into another prime (13102199777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551099988 + 6551099989.

It is an arithmetic number, because the mean of its divisors is an integer number (6551099989).

Almost surely, 2^13102199977 is an apocalyptic number.

It is an amenable number.

13102199977 is a deficient number, since it is larger than the sum of its proper divisors (1).

13102199977 is an equidigital number, since it uses as much as digits as its factorization.

13102199977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 49.

The spelling of 13102199977 in words is "thirteen billion, one hundred two million, one hundred ninety-nine thousand, nine hundred seventy-seven".