23113210221 has 32 divisors (see below), whose sum is σ = 35577504000. Its totient is φ = 14812386624.

The previous prime is 23113210213. The next prime is 23113210247. The reversal of 23113210221 is 12201231132.

23113210221 is a `hidden beast` number, since 231 + 1 + 3 + 210 + 221 = 666.

It is not a de Polignac number, because 23113210221 - 2³ = 23113210213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23113210194 and 23113210203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23113210261) 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 in 31 ways as a sum of consecutive naturals, for example, 114856 + ... + 243758.

It is an arithmetic number, because the mean of its divisors is an integer number (1111797000).

Almost surely, 2^23113210221 is an apocalyptic number.

It is an amenable number.

23113210221 is a deficient number, since it is larger than the sum of its proper divisors (12464293779).

23113210221 is a wasteful number, since it uses less digits than its factorization.

23113210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129170 (or 129164 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23113210221 its reverse (12201231132), we get a palindrome (35314441353).

The spelling of 23113210221 in words is "twenty-three billion, one hundred thirteen million, two hundred ten thousand, two hundred twenty-one".