13002013261 has 2 divisors, whose sum is σ = 13002013262. Its totient is φ = 13002013260.

The previous prime is 13002013223. The next prime is 13002013267. The reversal of 13002013261 is 16231020031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7158175236 + 5843838025 = 84606^2 + 76445^2 .

It is a cyclic number.

It is not a de Polignac number, because 13002013261 - 2¹⁵ = 13001980493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13002013267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6501006630 + 6501006631.

It is an arithmetic number, because the mean of its divisors is an integer number (6501006631).

Almost surely, 2^13002013261 is an apocalyptic number.

It is an amenable number.

13002013261 is a deficient number, since it is larger than the sum of its proper divisors (1).

13002013261 is an equidigital number, since it uses as much as digits as its factorization.

13002013261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13002013261 its reverse (16231020031), we get a palindrome (29233033292).

The spelling of 13002013261 in words is "thirteen billion, two million, thirteen thousand, two hundred sixty-one".