13052656021 has 2 divisors, whose sum is σ = 13052656022. Its totient is φ = 13052656020.

The previous prime is 13052656003. The next prime is 13052656033. The reversal of 13052656021 is 12065625031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7610643121 + 5442012900 = 87239^2 + 73770^2 .

It is a cyclic number.

It is not a de Polignac number, because 13052656021 - 2¹⁹ = 13052131733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13052656091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6526328010 + 6526328011.

It is an arithmetic number, because the mean of its divisors is an integer number (6526328011).

Almost surely, 2^13052656021 is an apocalyptic number.

It is an amenable number.

13052656021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13052656021 is an equidigital number, since it uses as much as digits as its factorization.

13052656021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The spelling of 13052656021 in words is "thirteen billion, fifty-two million, six hundred fifty-six thousand, twenty-one".