12902512901 has 2 divisors, whose sum is σ = 12902512902. Its totient is φ = 12902512900.

The previous prime is 12902512891. The next prime is 12902512919. The reversal of 12902512901 is 10921520921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7152930625 + 5749582276 = 84575^2 + 75826^2 .

It is a cyclic number.

It is not a de Polignac number, because 12902512901 - 2³⁰ = 11828771077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12902512921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6451256450 + 6451256451.

It is an arithmetic number, because the mean of its divisors is an integer number (6451256451).

Almost surely, 2^12902512901 is an apocalyptic number.

It is an amenable number.

12902512901 is a deficient number, since it is larger than the sum of its proper divisors (1).

12902512901 is an equidigital number, since it uses as much as digits as its factorization.

12902512901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

The spelling of 12902512901 in words is "twelve billion, nine hundred two million, five hundred twelve thousand, nine hundred one".