20423110122 has 40 divisors (see below), whose sum is σ = 45779713056. Its totient is φ = 6805201608.

The previous prime is 20423110087. The next prime is 20423110151. The reversal of 20423110122 is 22101132402.

It is a happy number.

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 = 20423110095 and 20423110104.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 448573 + ... + 491999.

Almost surely, 2^20423110122 is an apocalyptic number.

20423110122 is an abundant number, since it is smaller than the sum of its proper divisors (25356602934).

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

20423110122 is a wasteful number, since it uses less digits than its factorization.

20423110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46344 (or 46335 counting only the distinct ones).

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

Adding to 20423110122 its reverse (22101132402), we get a palindrome (42524242524).

The spelling of 20423110122 in words is "twenty billion, four hundred twenty-three million, one hundred ten thousand, one hundred twenty-two".