13040302120 has 64 divisors (see below), whose sum is σ = 30065112000. Its totient is φ = 5087674368.

The previous prime is 13040302069. The next prime is 13040302123. The reversal of 13040302120 is 2120304031.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13040302094 and 13040302103.

It is not an unprimeable number, because it can be changed into a prime (13040302123) 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, 1317751 + ... + 1327609.

It is an arithmetic number, because the mean of its divisors is an integer number (469767375).

Almost surely, 2^13040302120 is an apocalyptic number.

13040302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13040302120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15032556000).

13040302120 is an abundant number, since it is smaller than the sum of its proper divisors (17024809880).

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

13040302120 is a wasteful number, since it uses less digits than its factorization.

13040302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10682 (or 10678 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13040302120 its reverse (2120304031), we get a palindrome (15160606151).

The spelling of 13040302120 in words is "thirteen billion, forty million, three hundred two thousand, one hundred twenty".