12420324032 has 28 divisors (see below), whose sum is σ = 26096381640. Its totient is φ = 5844857856.

The previous prime is 12420324023. The next prime is 12420324079. The reversal of 12420324032 is 23042302421.

It is a super-3 number, since 3×12420324032³ (a number of 31 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12420323989 and 12420324007.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5706782 + ... + 5708957.

It is an arithmetic number, because the mean of its divisors is an integer number (932013630).

Almost surely, 2^12420324032 is an apocalyptic number.

It is an amenable number.

12420324032 is an abundant number, since it is smaller than the sum of its proper divisors (13676057608).

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

12420324032 is a wasteful number, since it uses less digits than its factorization.

12420324032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11415768 (or 11415758 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 12420324032 its reverse (23042302421), we get a palindrome (35462626453).

The spelling of 12420324032 in words is "twelve billion, four hundred twenty million, three hundred twenty-four thousand, thirty-two".