13021003020 has 24 divisors (see below), whose sum is σ = 36458808624. Its totient is φ = 3472267456.

The previous prime is 13021003013. The next prime is 13021003091. The reversal of 13021003020 is 2030012031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 13021002987 and 13021003005.

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, 108508299 + ... + 108508418.

It is an arithmetic number, because the mean of its divisors is an integer number (1519117026).

Almost surely, 2^13021003020 is an apocalyptic number.

13021003020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13021003020 is an abundant number, since it is smaller than the sum of its proper divisors (23437805604).

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

13021003020 is a wasteful number, since it uses less digits than its factorization.

13021003020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217016729 (or 217016727 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 13021003020 its reverse (2030012031), we get a palindrome (15051015051).

The spelling of 13021003020 in words is "thirteen billion, twenty-one million, three thousand, twenty".