13000403320 has 64 divisors (see below), whose sum is σ = 29646635040. Its totient is φ = 5130278400.

The previous prime is 13000403309. The next prime is 13000403329. The reversal of 13000403320 is 2330400031.

It is a junction number, because it is equal to n+sod(n) for n = 13000403294 and 13000403303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000403329) 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, 899350 + ... + 913690.

Almost surely, 2^13000403320 is an apocalyptic number.

13000403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13000403320 is an abundant number, since it is smaller than the sum of its proper divisors (16646231720).

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

13000403320 is a wasteful number, since it uses less digits than its factorization.

13000403320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14656 (or 14652 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 13000403320 its reverse (2330400031), we get a palindrome (15330803351).

The spelling of 13000403320 in words is "thirteen billion, four hundred three thousand, three hundred twenty".