23231021012 has 24 divisors (see below), whose sum is σ = 41124283200. Its totient is φ = 11481310016.

The previous prime is 23231020991. The next prime is 23231021027. The reversal of 23231021012 is 21012013232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345289 + ... + 1362447.

It is an arithmetic number, because the mean of its divisors is an integer number (1713511800).

Almost surely, 2^23231021012 is an apocalyptic number.

It is an amenable number.

23231021012 is a deficient number, since it is larger than the sum of its proper divisors (17893262188).

23231021012 is a wasteful number, since it uses less digits than its factorization.

23231021012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21055 (or 21053 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23231021012 its reverse (21012013232), we get a palindrome (44243034244).

The spelling of 23231021012 in words is "twenty-three billion, two hundred thirty-one million, twenty-one thousand, twelve".