20243044203220 has 24 divisors (see below), whose sum is σ = 42923115091584. Its totient is φ = 8018603916576.

The previous prime is 20243044203167. The next prime is 20243044203229. The reversal of 20243044203220 is 2230244034202.

It is a happy number.

It is a super-2 number, since 2×20243044203220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243044203229) 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, 4913358184 + ... + 4913362303.

It is an arithmetic number, because the mean of its divisors is an integer number (1788463128816).

Almost surely, 2^{20243044203220} is an apocalyptic number.

20243044203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20243044203220 is an abundant number, since it is smaller than the sum of its proper divisors (22680070888364).

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

20243044203220 is a wasteful number, since it uses less digits than its factorization.

20243044203220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826720599 (or 9826720597 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20243044203220 its reverse (2230244034202), we get a palindrome (22473288237422).

The spelling of 20243044203220 in words is "twenty trillion, two hundred forty-three billion, forty-four million, two hundred three thousand, two hundred twenty".