20050023120 has 80 divisors (see below), whose sum is σ = 62237742720. Its totient is φ = 5339561472.

The previous prime is 20050023089. The next prime is 20050023179. The reversal of 20050023120 is 2132005002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×20050023120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20050023120.

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, 126501 + ... + 236859.

It is an arithmetic number, because the mean of its divisors is an integer number (777971784).

Almost surely, 2^20050023120 is an apocalyptic number.

20050023120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20050023120 is an abundant number, since it is smaller than the sum of its proper divisors (42187719600).

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

20050023120 is a wasteful number, since it uses less digits than its factorization.

20050023120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111132 (or 111126 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 20050023120 its reverse (2132005002), we get a palindrome (22182028122).

The spelling of 20050023120 in words is "twenty billion, fifty million, twenty-three thousand, one hundred twenty".