23211421188 has 24 divisors (see below), whose sum is σ = 54165827520. Its totient is φ = 7736305440.

The previous prime is 23211421187. The next prime is 23211421229. The reversal of 23211421188 is 88112411232.

It is not an unprimeable number, because it can be changed into a prime (23211421187) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17118 + ... + 216138.

It is an arithmetic number, because the mean of its divisors is an integer number (2256909480).

Almost surely, 2^23211421188 is an apocalyptic number.

It is an amenable number.

23211421188 is an abundant number, since it is smaller than the sum of its proper divisors (30954406332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23211421188 is a wasteful number, since it uses less digits than its factorization.

23211421188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208747 (or 208745 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The spelling of 23211421188 in words is "twenty-three billion, two hundred eleven million, four hundred twenty-one thousand, one hundred eighty-eight".