20233121112020 has 48 divisors (see below), whose sum is σ = 42530888106000. Its totient is φ = 8085376843776.

The previous prime is 20233121111993. The next prime is 20233121112073. The reversal of 20233121112020 is 2021112133202.

It can be written as a sum of positive squares in 8 ways, for example, as 4247613828676 + 15985507283344 = 2060974^2 + 3998188^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20233121111983 and 20233121112001.

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, 247462106 + ... + 247543854.

It is an arithmetic number, because the mean of its divisors is an integer number (886060168875).

Almost surely, 2^{20233121112020} is an apocalyptic number.

20233121112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233121112020 is an abundant number, since it is smaller than the sum of its proper divisors (22297766993980).

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

20233121112020 is a wasteful number, since it uses less digits than its factorization.

20233121112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93644 (or 93642 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 20233121112020 its reverse (2021112133202), we get a palindrome (22254233245222).

The spelling of 20233121112020 in words is "twenty trillion, two hundred thirty-three billion, one hundred twenty-one million, one hundred twelve thousand, twenty".