20112303020 has 24 divisors (see below), whose sum is σ = 42241155264. Its totient is φ = 8043908096.

The previous prime is 20112303019. The next prime is 20112303023. The reversal of 20112303020 is 2030321102.

It is a happy number.

It is a super-2 number, since 2×20112303020² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20112302986 and 20112303004.

It is not an unprimeable number, because it can be changed into a prime (20112303023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111197 + ... + 229323.

It is an arithmetic number, because the mean of its divisors is an integer number (1760048136).

Almost surely, 2^20112303020 is an apocalyptic number.

20112303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112303020 is an abundant number, since it is smaller than the sum of its proper divisors (22128852244).

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

20112303020 is a wasteful number, since it uses less digits than its factorization.

20112303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126649 (or 126647 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20112303020 its reverse (2030321102), we get a palindrome (22142624122).

The spelling of 20112303020 in words is "twenty billion, one hundred twelve million, three hundred three thousand, twenty".