13321333020 has 48 divisors (see below), whose sum is σ = 38502955008. Its totient is φ = 3437762880.

The previous prime is 13321332967. The next prime is 13321333021. The reversal of 13321333020 is 2033312331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321333021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3579144 + ... + 3582863.

It is an arithmetic number, because the mean of its divisors is an integer number (802144896).

Almost surely, 2^13321333020 is an apocalyptic number.

13321333020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13321333020 is an abundant number, since it is smaller than the sum of its proper divisors (25181621988).

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

13321333020 is a wasteful number, since it uses less digits than its factorization.

13321333020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7162050 (or 7162048 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13321333020 its reverse (2033312331), we get a palindrome (15354645351).

The spelling of 13321333020 in words is "thirteen billion, three hundred twenty-one million, three hundred thirty-three thousand, twenty".