23521012601 has 2 divisors, whose sum is σ = 23521012602. Its totient is φ = 23521012600.

The previous prime is 23521012547. The next prime is 23521012637. The reversal of 23521012601 is 10621012532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23263570576 + 257442025 = 152524^2 + 16045^2 .

It is a cyclic number.

It is not a de Polignac number, because 23521012601 - 2¹⁸ = 23520750457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (23521012651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11760506300 + 11760506301.

It is an arithmetic number, because the mean of its divisors is an integer number (11760506301).

Almost surely, 2^23521012601 is an apocalyptic number.

It is an amenable number.

23521012601 is a deficient number, since it is larger than the sum of its proper divisors (1).

23521012601 is an equidigital number, since it uses as much as digits as its factorization.

23521012601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The spelling of 23521012601 in words is "twenty-three billion, five hundred twenty-one million, twelve thousand, six hundred one".