20023031132 has 24 divisors (see below), whose sum is σ = 38354336832. Its totient is φ = 9089899200.

The previous prime is 20023031123. The next prime is 20023031159. The reversal of 20023031132 is 23113032002.

It is a self number, because there is not a number n which added to its sum of digits gives 20023031132.

It is a congruent number.

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, 3153044 + ... + 3159387.

It is an arithmetic number, because the mean of its divisors is an integer number (1598097368).

Almost surely, 2^20023031132 is an apocalyptic number.

It is an amenable number.

20023031132 is a deficient number, since it is larger than the sum of its proper divisors (18331305700).

20023031132 is a wasteful number, since it uses less digits than its factorization.

20023031132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6312509 (or 6312507 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 20023031132 its reverse (23113032002), we get a palindrome (43136063134).

The spelling of 20023031132 in words is "twenty billion, twenty-three million, thirty-one thousand, one hundred thirty-two".