12432003320 has 32 divisors (see below), whose sum is σ = 30514918320. Its totient is φ = 4520728320.

The previous prime is 12432003307. The next prime is 12432003361. The reversal of 12432003320 is 2330023421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12432003292 and 12432003301.

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, 14126837 + ... + 14127716.

Almost surely, 2^12432003320 is an apocalyptic number.

12432003320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12432003320 is an abundant number, since it is smaller than the sum of its proper divisors (18082915000).

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

12432003320 is a wasteful number, since it uses less digits than its factorization.

12432003320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28254575 (or 28254571 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 12432003320 its reverse (2330023421), we get a palindrome (14762026741).

The spelling of 12432003320 in words is "twelve billion, four hundred thirty-two million, three thousand, three hundred twenty".