20023131112 has 32 divisors (see below), whose sum is σ = 37713614400. Its totient is φ = 9966219264.

The previous prime is 20023131109. The next prime is 20023131127. The reversal of 20023131112 is 21113132002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6328843 + ... + 6332005.

It is an arithmetic number, because the mean of its divisors is an integer number (1178550450).

Almost surely, 2^20023131112 is an apocalyptic number.

It is an amenable number.

20023131112 is a deficient number, since it is larger than the sum of its proper divisors (17690483288).

20023131112 is a wasteful number, since it uses less digits than its factorization.

20023131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6505 (or 6501 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 20023131112 its reverse (21113132002), we get a palindrome (41136263114).

The spelling of 20023131112 in words is "twenty billion, twenty-three million, one hundred thirty-one thousand, one hundred twelve".