20023020120 has 64 divisors (see below), whose sum is σ = 60451722720. Its totient is φ = 5305457664.

The previous prime is 20023020119. The next prime is 20023020137. The reversal of 20023020120 is 2102032002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20023020096 and 20023020105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 512557 + ... + 550236.

Almost surely, 2^20023020120 is an apocalyptic number.

20023020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20023020120 is an abundant number, since it is smaller than the sum of its proper divisors (40428702600).

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

20023020120 is a wasteful number, since it uses less digits than its factorization.

20023020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062964 (or 1062960 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20023020120 its reverse (2102032002), we get a palindrome (22125052122).

The spelling of 20023020120 in words is "twenty billion, twenty-three million, twenty thousand, one hundred twenty".