12389298320 has 160 divisors (see below), whose sum is σ = 33399219456. Its totient is φ = 4186368000.

The previous prime is 12389298269. The next prime is 12389298343. The reversal of 12389298320 is 2389298321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17929175 + ... + 17929865.

Almost surely, 2^12389298320 is an apocalyptic number.

12389298320 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 12389298320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16699609728).

12389298320 is an abundant number, since it is smaller than the sum of its proper divisors (21009921136).

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

12389298320 is a wasteful number, since it uses less digits than its factorization.

12389298320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129 (or 1123 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 47.

Subtracting from 12389298320 its reverse (2389298321), we obtain a palindrome (9999999999).

The spelling of 12389298320 in words is "twelve billion, three hundred eighty-nine million, two hundred ninety-eight thousand, three hundred twenty".