12103232320 has 56 divisors (see below), whose sum is σ = 28851066504. Its totient is φ = 4836212736.

The previous prime is 12103232311. The next prime is 12103232341. The reversal of 12103232320 is 2323230121.

It can be written as a sum of positive squares in 4 ways, for example, as 5726251584 + 6376980736 = 75672^2 + 79856^2 .

It is a super-3 number, since 3×12103232320³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 293284 + ... + 331996.

Almost surely, 2^12103232320 is an apocalyptic number.

12103232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103232320 is an abundant number, since it is smaller than the sum of its proper divisors (16747834184).

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

12103232320 is an equidigital number, since it uses as much as digits as its factorization.

12103232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39707 (or 39697 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 12103232320 its reverse (2323230121), we get a palindrome (14426462441).

The spelling of 12103232320 in words is "twelve billion, one hundred three million, two hundred thirty-two thousand, three hundred twenty".