20113320211320 has 192 divisors, whose sum is σ = 70196339076480. Its totient is φ = 4597005713664.

The previous prime is 20113320211307. The next prime is 20113320211379. The reversal of 20113320211320 is 2311202331102.

It is a super-2 number, since 2×20113320211320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 88715947 + ... + 88942373.

It is an arithmetic number, because the mean of its divisors is an integer number (365605932690).

Almost surely, 2^{20113320211320} is an apocalyptic number.

20113320211320 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 20113320211320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35098169538240).

20113320211320 is an abundant number, since it is smaller than the sum of its proper divisors (50083018865160).

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

20113320211320 is a wasteful number, since it uses less digits than its factorization.

20113320211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241562 (or 241551 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20113320211320 its reverse (2311202331102), we get a palindrome (22424522542422).

The spelling of 20113320211320 in words is "twenty trillion, one hundred thirteen billion, three hundred twenty million, two hundred eleven thousand, three hundred twenty".