23168687121 has 32 divisors (see below), whose sum is σ = 35266492800. Its totient is φ = 15022013760.

The previous prime is 23168687063. The next prime is 23168687141. The reversal of 23168687121 is 12178686132.

It is not a de Polignac number, because 23168687121 - 2⁷ = 23168686993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23168687141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4084075 + ... + 4089743.

It is an arithmetic number, because the mean of its divisors is an integer number (1102077900).

Almost surely, 2^23168687121 is an apocalyptic number.

It is an amenable number.

23168687121 is a deficient number, since it is larger than the sum of its proper divisors (12097805679).

23168687121 is a wasteful number, since it uses less digits than its factorization.

23168687121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9806 (or 9800 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The spelling of 23168687121 in words is "twenty-three billion, one hundred sixty-eight million, six hundred eighty-seven thousand, one hundred twenty-one".