13202020520 has 64 divisors (see below), whose sum is σ = 32272747920. Its totient is φ = 4831432704.

The previous prime is 13202020453. The next prime is 13202020583. The reversal of 13202020520 is 2502020231.

It can be written as a sum of positive squares in 8 ways, for example, as 4008662596 + 9193357924 = 63314^2 + 95882^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53579 + ... + 171098.

Almost surely, 2^13202020520 is an apocalyptic number.

13202020520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13202020520 is an abundant number, since it is smaller than the sum of its proper divisors (19070727400).

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

13202020520 is a wasteful number, since it uses less digits than its factorization.

13202020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224814 (or 224810 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 13202020520 its reverse (2502020231), we get a palindrome (15704040751).

The spelling of 13202020520 in words is "thirteen billion, two hundred two million, twenty thousand, five hundred twenty".