23231110221 has 12 divisors (see below), whose sum is σ = 36606598080. Its totient is φ = 14079460680.

The previous prime is 23231110193. The next prime is 23231110237. The reversal of 23231110221 is 12201113232.

23231110221 is a `hidden beast` number, since 232 + 311 + 102 + 21 = 666.

It is not a de Polignac number, because 23231110221 - 2⁹ = 23231109709 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23231110194 and 23231110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231110241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117328741 + ... + 117328938.

It is an arithmetic number, because the mean of its divisors is an integer number (3050549840).

Almost surely, 2^23231110221 is an apocalyptic number.

It is an amenable number.

23231110221 is a deficient number, since it is larger than the sum of its proper divisors (13375487859).

23231110221 is a wasteful number, since it uses less digits than its factorization.

23231110221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234657696 (or 234657693 counting only the distinct ones).

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

Adding to 23231110221 its reverse (12201113232), we get a palindrome (35432223453).

The spelling of 23231110221 in words is "twenty-three billion, two hundred thirty-one million, one hundred ten thousand, two hundred twenty-one".