12421440324232 has 16 divisors (see below), whose sum is σ = 23315056759260. Its totient is φ = 6204091855104.

The previous prime is 12421440324211. The next prime is 12421440324269. The reversal of 12421440324232 is 23242304412421.

It can be written as a sum of positive squares in 2 ways, for example, as 9044129963716 + 3377310360516 = 3007346^2 + 1837746^2 .

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, 828530413 + ... + 828545404.

Almost surely, 2^{12421440324232} is an apocalyptic number.

It is an amenable number.

12421440324232 is a deficient number, since it is larger than the sum of its proper divisors (10893616435028).

12421440324232 is a wasteful number, since it uses less digits than its factorization.

12421440324232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657076760 (or 1657076756 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 12421440324232 its reverse (23242304412421), we get a palindrome (35663744736653).

The spelling of 12421440324232 in words is "twelve trillion, four hundred twenty-one billion, four hundred forty million, three hundred twenty-four thousand, two hundred thirty-two".