20423100112 has 20 divisors (see below), whose sum is σ = 39961539396. Its totient is φ = 10110444800.

The previous prime is 20423100109. The next prime is 20423100143. The reversal of 20423100112 is 21100132402.

It can be written as a sum of positive squares in 2 ways, for example, as 13797791296 + 6625308816 = 117464^2 + 81396^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6317413 + ... + 6320644.

Almost surely, 2^20423100112 is an apocalyptic number.

It is an amenable number.

20423100112 is a deficient number, since it is larger than the sum of its proper divisors (19538439284).

20423100112 is a wasteful number, since it uses less digits than its factorization.

20423100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12638166 (or 12638160 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20423100112 its reverse (21100132402), we get a palindrome (41523232514).

The spelling of 20423100112 in words is "twenty billion, four hundred twenty-three million, one hundred thousand, one hundred twelve".