13102129961 has 2 divisors, whose sum is σ = 13102129962. Its totient is φ = 13102129960.

The previous prime is 13102129933. The next prime is 13102129967. The reversal of 13102129961 is 16992120131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13101091600 + 1038361 = 114460^2 + 1019^2 .

It is a cyclic number.

It is not a de Polignac number, because 13102129961 - 2¹⁸ = 13101867817 is a prime.

It is not a weakly prime, because it can be changed into another prime (13102129967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6551064980 + 6551064981.

It is an arithmetic number, because the mean of its divisors is an integer number (6551064981).

Almost surely, 2^13102129961 is an apocalyptic number.

It is an amenable number.

13102129961 is a deficient number, since it is larger than the sum of its proper divisors (1).

13102129961 is an equidigital number, since it uses as much as digits as its factorization.

13102129961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 13102129961 in words is "thirteen billion, one hundred two million, one hundred twenty-nine thousand, nine hundred sixty-one".