13012320330 has 40 divisors (see below), whose sum is σ = 34988685732. Its totient is φ = 3469951872.

The previous prime is 13012320323. The next prime is 13012320331. The reversal of 13012320330 is 3302321031.

13012320330 is a `hidden beast` number, since 1 + 3 + 0 + 12 + 320 + 330 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11755546929 + 1256773401 = 108423^2 + 35451^2 .

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

It is not an unprimeable number, because it can be changed into a prime (13012320331) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8031487 + ... + 8033106.

Almost surely, 2^13012320330 is an apocalyptic number.

13012320330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13012320330 is an abundant number, since it is smaller than the sum of its proper divisors (21976365402).

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

13012320330 is a wasteful number, since it uses less digits than its factorization.

13012320330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16064612 (or 16064603 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 13012320330 its reverse (3302321031), we get a palindrome (16314641361).

The spelling of 13012320330 in words is "thirteen billion, twelve million, three hundred twenty thousand, three hundred thirty".