23369621404621 has 2 divisors, whose sum is σ = 23369621404622. Its totient is φ = 23369621404620.

The previous prime is 23369621404589. The next prime is 23369621404631. The reversal of 23369621404621 is 12640412696332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21314971510596 + 2054649894025 = 4616814^2 + 1433405^2 .

It is a cyclic number.

It is not a de Polignac number, because 23369621404621 - 2⁵ = 23369621404589 is a prime.

It is a super-2 number, since 2×23369621404621² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23369621404631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11684810702310 + 11684810702311.

It is an arithmetic number, because the mean of its divisors is an integer number (11684810702311).

Almost surely, 2^{23369621404621} is an apocalyptic number.

It is an amenable number.

23369621404621 is a deficient number, since it is larger than the sum of its proper divisors (1).

23369621404621 is an equidigital number, since it uses as much as digits as its factorization.

23369621404621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 23369621404621 in words is "twenty-three trillion, three hundred sixty-nine billion, six hundred twenty-one million, four hundred four thousand, six hundred twenty-one".