12420324232 has 8 divisors (see below), whose sum is σ = 23288107950. Its totient is φ = 6210162112.

The previous prime is 12420324229. The next prime is 12420324271. The reversal of 12420324232 is 23242302421.

It can be written as a sum of positive squares in only one way, i.e., 11834393796 + 585930436 = 108786^2 + 24206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 12420324197 and 12420324206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 776270257 + ... + 776270272.

Almost surely, 2^12420324232 is an apocalyptic number.

It is an amenable number.

12420324232 is a deficient number, since it is larger than the sum of its proper divisors (10867783718).

12420324232 is a wasteful number, since it uses less digits than its factorization.

12420324232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1552540535 (or 1552540531 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 12420324232 its reverse (23242302421), we get a palindrome (35662626653).

The spelling of 12420324232 in words is "twelve billion, four hundred twenty million, three hundred twenty-four thousand, two hundred thirty-two".