23735642123 has 2 divisors, whose sum is σ = 23735642124. Its totient is φ = 23735642122.

The previous prime is 23735642101. The next prime is 23735642167. The reversal of 23735642123 is 32124653732.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23735642123 - 2²² = 23731447819 is a prime.

It is a super-2 number, since 2×23735642123² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (23735642323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11867821061 + 11867821062.

It is an arithmetic number, because the mean of its divisors is an integer number (11867821062).

Almost surely, 2^23735642123 is an apocalyptic number.

23735642123 is a deficient number, since it is larger than the sum of its proper divisors (1).

23735642123 is an equidigital number, since it uses as much as digits as its factorization.

23735642123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 38.

The spelling of 23735642123 in words is "twenty-three billion, seven hundred thirty-five million, six hundred forty-two thousand, one hundred twenty-three".