13312120302 has 48 divisors (see below), whose sum is σ = 31122917280. Its totient is φ = 4087953216.

The previous prime is 13312120291. The next prime is 13312120303. The reversal of 13312120302 is 20302121331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312120303) 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, 63223 + ... + 174989.

It is an arithmetic number, because the mean of its divisors is an integer number (648394110).

Almost surely, 2^13312120302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13312120302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15561458640).

13312120302 is an abundant number, since it is smaller than the sum of its proper divisors (17810796978).

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

13312120302 is a wasteful number, since it uses less digits than its factorization.

13312120302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112297 (or 112294 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13312120302 its reverse (20302121331), we get a palindrome (33614241633).

The spelling of 13312120302 in words is "thirteen billion, three hundred twelve million, one hundred twenty thousand, three hundred two".