20013311022320 has 160 divisors (see below), whose sum is σ = 58469405147136. Its totient is φ = 6188797440000.

The previous prime is 20013311022319. The next prime is 20013311022323. The reversal of 20013311022320 is 2322011331002.

It is a super-2 number, since 2×20013311022320² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20013311022292 and 20013311022301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013311022323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12008681 + ... + 13573320.

Almost surely, 2^{20013311022320} is an apocalyptic number.

20013311022320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20013311022320 is an abundant number, since it is smaller than the sum of its proper divisors (38456094124816).

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

20013311022320 is a wasteful number, since it uses less digits than its factorization.

20013311022320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25582159 (or 25582153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20013311022320 its reverse (2322011331002), we get a palindrome (22335322353322).

The spelling of 20013311022320 in words is "twenty trillion, thirteen billion, three hundred eleven million, twenty-two thousand, three hundred twenty".