12312011332 has 6 divisors (see below), whose sum is σ = 21546019838. Its totient is φ = 6156005664.

The previous prime is 12312011329. The next prime is 12312011333. The reversal of 12312011332 is 23311021321.

12312011332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12089882116 + 222129216 = 109954^2 + 14904^2 .

It is not an unprimeable number, because it can be changed into a prime (12312011333) by changing a digit.

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 as a sum of consecutive naturals, namely, 1539001413 + ... + 1539001420.

Almost surely, 2^12312011332 is an apocalyptic number.

It is an amenable number.

12312011332 is a deficient number, since it is larger than the sum of its proper divisors (9234008506).

12312011332 is a wasteful number, since it uses less digits than its factorization.

12312011332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078002837 (or 3078002835 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12312011332 its reverse (23311021321), we get a palindrome (35623032653).

The spelling of 12312011332 in words is "twelve billion, three hundred twelve million, eleven thousand, three hundred thirty-two".