12231324402 has 32 divisors (see below), whose sum is σ = 26744986944. Its totient is φ = 3698342400.

The previous prime is 12231324349. The next prime is 12231324437. The reversal of 12231324402 is 20442313221.

It is a happy number.

12231324402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172599 + ... + 232922.

It is an arithmetic number, because the mean of its divisors is an integer number (835780842).

Almost surely, 2^12231324402 is an apocalyptic number.

12231324402 is an abundant number, since it is smaller than the sum of its proper divisors (14513662542).

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

12231324402 is a wasteful number, since it uses less digits than its factorization.

12231324402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405994.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12231324402 its reverse (20442313221), we get a palindrome (32673637623).

It can be divided in two parts, 12231 and 324402, that added together give a palindrome (336633).

The spelling of 12231324402 in words is "twelve billion, two hundred thirty-one million, three hundred twenty-four thousand, four hundred two".