20023112124 has 36 divisors (see below), whose sum is σ = 50642912320. Its totient is φ = 6670555200.

The previous prime is 20023112113. The next prime is 20023112129. The reversal of 20023112124 is 42121132002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20023112097 and 20023112106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023112129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94777 + ... + 221424.

Almost surely, 2^20023112124 is an apocalyptic number.

It is an amenable number.

20023112124 is an abundant number, since it is smaller than the sum of its proper divisors (30619800196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20023112124 is a wasteful number, since it uses less digits than its factorization.

20023112124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317970 (or 317965 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20023112124 its reverse (42121132002), we get a palindrome (62144244126).

The spelling of 20023112124 in words is "twenty billion, twenty-three million, one hundred twelve thousand, one hundred twenty-four".