23231123212 has 24 divisors (see below), whose sum is σ = 44446569552. Its totient is φ = 10536686400.

The previous prime is 23231123189. The next prime is 23231123219. The reversal of 23231123212 is 21232113232.

It is a super-2 number, since 2×23231123212² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (23231123219) 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, 552363 + ... + 592930.

It is an arithmetic number, because the mean of its divisors is an integer number (1851940398).

Almost surely, 2^23231123212 is an apocalyptic number.

23231123212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23231123212 is a deficient number, since it is larger than the sum of its proper divisors (21215446340).

23231123212 is a wasteful number, since it uses less digits than its factorization.

23231123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1145769 (or 1145767 counting only the distinct ones).

The product of its digits is 864, while the sum is 22.

Adding to 23231123212 its reverse (21232113232), we get a palindrome (44463236444).

The spelling of 23231123212 in words is "twenty-three billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred twelve".