20012013323200 has 84 divisors (see below), whose sum is σ = 49258361325600. Its totient is φ = 8002155427840.

The previous prime is 20012013323153. The next prime is 20012013323213. The reversal of 20012013323200 is 232331021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2768076 + ... + 6905524.

It is an arithmetic number, because the mean of its divisors is an integer number (586409063400).

Almost surely, 2^{20012013323200} is an apocalyptic number.

20012013323200 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 20012013323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24629180662800).

20012013323200 is an abundant number, since it is smaller than the sum of its proper divisors (29246348002400).

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

20012013323200 is a wasteful number, since it uses less digits than its factorization.

20012013323200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140494 (or 4140479 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20012013323200 its reverse (232331021002), we get a palindrome (20244344344202).

The spelling of 20012013323200 in words is "twenty trillion, twelve billion, thirteen million, three hundred twenty-three thousand, two hundred".