13520073020 has 48 divisors (see below), whose sum is σ = 28895378400. Its totient is φ = 5312317440.

The previous prime is 13520072999. The next prime is 13520073103. The reversal of 13520073020 is 2037002531.

It is a super-2 number, since 2×13520073020² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 1895060 + ... + 1902180.

It is an arithmetic number, because the mean of its divisors is an integer number (601987050).

Almost surely, 2^13520073020 is an apocalyptic number.

13520073020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13520073020 is an abundant number, since it is smaller than the sum of its proper divisors (15375305380).

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

13520073020 is a wasteful number, since it uses less digits than its factorization.

13520073020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798 (or 8796 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

Adding to 13520073020 its reverse (2037002531), we get a palindrome (15557075551).

The spelling of 13520073020 in words is "thirteen billion, five hundred twenty million, seventy-three thousand, twenty".