23405324161 has 2 divisors, whose sum is σ = 23405324162. Its totient is φ = 23405324160.

The previous prime is 23405324113. The next prime is 23405324191. The reversal of 23405324161 is 16142350432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23404410225 + 913936 = 152985^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 23405324161 - 2²⁹ = 22868453249 is a prime.

It is not a weakly prime, because it can be changed into another prime (23405324191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11702662080 + 11702662081.

It is an arithmetic number, because the mean of its divisors is an integer number (11702662081).

Almost surely, 2^23405324161 is an apocalyptic number.

It is an amenable number.

23405324161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23405324161 is an equidigital number, since it uses as much as digits as its factorization.

23405324161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 23405324161 its reverse (16142350432), we get a palindrome (39547674593).

The spelling of 23405324161 in words is "twenty-three billion, four hundred five million, three hundred twenty-four thousand, one hundred sixty-one".