13213323020 has 24 divisors (see below), whose sum is σ = 27752646768. Its totient is φ = 5284440000.

The previous prime is 13213322939. The next prime is 13213323089. The reversal of 13213323020 is 2032331231.

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 = 13213322983 and 13213323001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73595 + ... + 178445.

It is an arithmetic number, because the mean of its divisors is an integer number (1156360282).

Almost surely, 2^13213323020 is an apocalyptic number.

13213323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13213323020 is an abundant number, since it is smaller than the sum of its proper divisors (14539323748).

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

13213323020 is a wasteful number, since it uses less digits than its factorization.

13213323020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111161 (or 111159 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13213323020 its reverse (2032331231), we get a palindrome (15245654251).

The spelling of 13213323020 in words is "thirteen billion, two hundred thirteen million, three hundred twenty-three thousand, twenty".