23423511169957 has 2 divisors, whose sum is σ = 23423511169958. Its totient is φ = 23423511169956.

The previous prime is 23423511169871. The next prime is 23423511169991. The reversal of 23423511169957 is 75996111532432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23366482864321 + 57028305636 = 4833889^2 + 238806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23423511169957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23423511169057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711755584978 + 11711755584979.

It is an arithmetic number, because the mean of its divisors is an integer number (11711755584979).

Almost surely, 2^{23423511169957} is an apocalyptic number.

It is an amenable number.

23423511169957 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423511169957 is an equidigital number, since it uses as much as digits as its factorization.

23423511169957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12247200, while the sum is 58.

The spelling of 23423511169957 in words is "twenty-three trillion, four hundred twenty-three billion, five hundred eleven million, one hundred sixty-nine thousand, nine hundred fifty-seven".