23998061111 has 2 divisors, whose sum is σ = 23998061112. Its totient is φ = 23998061110.

The previous prime is 23998061051. The next prime is 23998061117. The reversal of 23998061111 is 11116089932.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23998061111 - 2⁶ = 23998061047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23998061117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11999030555 + 11999030556.

It is an arithmetic number, because the mean of its divisors is an integer number (11999030556).

Almost surely, 2^23998061111 is an apocalyptic number.

23998061111 is a deficient number, since it is larger than the sum of its proper divisors (1).

23998061111 is an equidigital number, since it uses as much as digits as its factorization.

23998061111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 41.

The spelling of 23998061111 in words is "twenty-three billion, nine hundred ninety-eight million, sixty-one thousand, one hundred eleven".