23373238891 has 2 divisors, whose sum is σ = 23373238892. Its totient is φ = 23373238890.

The previous prime is 23373238849. The next prime is 23373238913. The reversal of 23373238891 is 19883237332.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23373238891 - 2³³ = 14783304299 is a prime.

It is not a weakly prime, because it can be changed into another prime (23373238391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11686619445 + 11686619446.

It is an arithmetic number, because the mean of its divisors is an integer number (11686619446).

Almost surely, 2^23373238891 is an apocalyptic number.

23373238891 is a deficient number, since it is larger than the sum of its proper divisors (1).

23373238891 is an equidigital number, since it uses as much as digits as its factorization.

23373238891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1306368, while the sum is 49.

The spelling of 23373238891 in words is "twenty-three billion, three hundred seventy-three million, two hundred thirty-eight thousand, eight hundred ninety-one".