12311323232 has 24 divisors (see below), whose sum is σ = 26102373696. Its totient is φ = 5682148992.

The previous prime is 12311323217. The next prime is 12311323237. The reversal of 12311323232 is 23232311321.

It is a junction number, because it is equal to n+sod(n) for n = 12311323198 and 12311323207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311323237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14796848 + ... + 14797679.

It is an arithmetic number, because the mean of its divisors is an integer number (1087598904).

Almost surely, 2^12311323232 is an apocalyptic number.

It is an amenable number.

12311323232 is an abundant number, since it is smaller than the sum of its proper divisors (13791050464).

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

12311323232 is a wasteful number, since it uses less digits than its factorization.

12311323232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29594550 (or 29594542 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 12311323232 its reverse (23232311321), we get a palindrome (35543634553).

The spelling of 12311323232 in words is "twelve billion, three hundred eleven million, three hundred twenty-three thousand, two hundred thirty-two".