12311332 has 48 divisors (see below), whose sum is σ = 25280640. Its totient is φ = 5184000.

The previous prime is 12311311. The next prime is 12311333. The reversal of 12311332 is 23311321.

It is a super-2 number, since 2×12311332² = 303137791228448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81457 + ... + 81607.

It is an arithmetic number, because the mean of its divisors is an integer number (526680).

Almost surely, 2^12311332 is an apocalyptic number.

It is an amenable number.

12311332 is an abundant number, since it is smaller than the sum of its proper divisors (12969308).

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

12311332 is a wasteful number, since it uses less digits than its factorization.

12311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 290 counting only the distinct ones).

The product of its digits is 108, while the sum is 16.

The square root of 12311332 is about 3508.7507748485. The cubic root of 12311332 is about 230.9058917147.

Adding to 12311332 its reverse (23311321), we get a palindrome (35622653).

The spelling of 12311332 in words is "twelve million, three hundred eleven thousand, three hundred thirty-two".