20201232323220 has 384 divisors, whose sum is σ = 63090817574400. Its totient is φ = 4797989683200.

The previous prime is 20201232323191. The next prime is 20201232323287. The reversal of 20201232323220 is 2232323210202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1548099256 + ... + 1548112304.

It is an arithmetic number, because the mean of its divisors is an integer number (164299004100).

Almost surely, 2^{20201232323220} is an apocalyptic number.

20201232323220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20201232323220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31545408787200).

20201232323220 is an abundant number, since it is smaller than the sum of its proper divisors (42889585251180).

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

20201232323220 is a wasteful number, since it uses less digits than its factorization.

20201232323220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13675 (or 13673 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20201232323220 its reverse (2232323210202), we get a palindrome (22433555533422).

The spelling of 20201232323220 in words is "twenty trillion, two hundred one billion, two hundred thirty-two million, three hundred twenty-three thousand, two hundred twenty".