13304023020 has 72 divisors (see below), whose sum is σ = 40378927680. Its totient is φ = 3545683200.

The previous prime is 13304023001. The next prime is 13304023027. The reversal of 13304023020 is 2032040331.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 13304022984 and 13304023002.

It is not an unprimeable number, because it can be changed into a prime (13304023027) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 303661 + ... + 344699.

It is an arithmetic number, because the mean of its divisors is an integer number (560818440).

Almost surely, 2^13304023020 is an apocalyptic number.

13304023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13304023020 is an abundant number, since it is smaller than the sum of its proper divisors (27074904660).

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

13304023020 is a wasteful number, since it uses less digits than its factorization.

13304023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42855 (or 42850 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 13304023020 its reverse (2032040331), we get a palindrome (15336063351).

The spelling of 13304023020 in words is "thirteen billion, three hundred four million, twenty-three thousand, twenty".