20023231012 has 24 divisors (see below), whose sum is σ = 35398040832. Its totient is φ = 9909564000.

The previous prime is 20023230991. The next prime is 20023231013. The reversal of 20023231012 is 21013232002.

It is not an unprimeable number, because it can be changed into a prime (20023231013) 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, 2145837 + ... + 2155147.

It is an arithmetic number, because the mean of its divisors is an integer number (1474918368).

Almost surely, 2^20023231012 is an apocalyptic number.

It is an amenable number.

20023231012 is a deficient number, since it is larger than the sum of its proper divisors (15374809820).

20023231012 is a wasteful number, since it uses less digits than its factorization.

20023231012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14739 (or 14737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20023231012 its reverse (21013232002), we get a palindrome (41036463014).

The spelling of 20023231012 in words is "twenty billion, twenty-three million, two hundred thirty-one thousand, twelve".