20233220020 has 48 divisors (see below), whose sum is σ = 45773436240. Its totient is φ = 7468240896.

The previous prime is 20233219997. The next prime is 20233220087. The reversal of 20233220020 is 2002233202.

It can be written as a sum of positive squares in 8 ways, for example, as 2203175844 + 18030044176 = 46938^2 + 134276^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20233219976 and 20233220003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 890724 + ... + 913156.

It is an arithmetic number, because the mean of its divisors is an integer number (953613255).

Almost surely, 2^20233220020 is an apocalyptic number.

20233220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20233220020 is an abundant number, since it is smaller than the sum of its proper divisors (25540216220).

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

20233220020 is a wasteful number, since it uses less digits than its factorization.

20233220020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25924 (or 25922 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20233220020 its reverse (2002233202), we get a palindrome (22235453222).

The spelling of 20233220020 in words is "twenty billion, two hundred thirty-three million, two hundred twenty thousand, twenty".