23231113221 has 16 divisors (see below), whose sum is σ = 31889639936. Its totient is φ = 15034417776.

The previous prime is 23231113193. The next prime is 23231113231. The reversal of 23231113221 is 12231113232.

It is not a de Polignac number, because 23231113221 - 2⁷ = 23231113093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231113231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 531385 + ... + 573438.

It is an arithmetic number, because the mean of its divisors is an integer number (1993102496).

Almost surely, 2^23231113221 is an apocalyptic number.

It is an amenable number.

23231113221 is a deficient number, since it is larger than the sum of its proper divisors (8658526715).

23231113221 is a wasteful number, since it uses less digits than its factorization.

23231113221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105032.

The product of its digits is 432, while the sum is 21.

Adding to 23231113221 its reverse (12231113232), we get a palindrome (35462226453).

The spelling of 23231113221 in words is "twenty-three billion, two hundred thirty-one million, one hundred thirteen thousand, two hundred twenty-one".