20313220200000 has 672 divisors, whose sum is σ = 82680153631488. Its totient is φ = 4285854720000.

The previous prime is 20313220199999. The next prime is 20313220200019. The reversal of 20313220200000 is 202231302.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54413982 + ... + 54786018.

It is an arithmetic number, because the mean of its divisors is an integer number (123035942904).

Almost surely, 2^{20313220200000} is an apocalyptic number.

20313220200000 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 20313220200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41340076815744).

20313220200000 is an abundant number, since it is smaller than the sum of its proper divisors (62366933431488).

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

20313220200000 is an equidigital number, since it uses as much as digits as its factorization.

20313220200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372097 (or 372067 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20313220200000 its reverse (202231302), we get a palindrome (20313422431302).

The spelling of 20313220200000 in words is "twenty trillion, three hundred thirteen billion, two hundred twenty million, two hundred thousand".