12331472 has 20 divisors (see below), whose sum is σ = 24299040. Its totient is φ = 6060768.

The previous prime is 12331463. The next prime is 12331481. The reversal of 12331472 is 27413321.

It is an interprime number because it is at equal distance from previous prime (12331463) and next prime (12331481).

It is a super-3 number, since 3×12331472³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5588 + ... + 7475.

It is an arithmetic number, because the mean of its divisors is an integer number (1214952).

Almost surely, 2^12331472 is an apocalyptic number.

It is an amenable number.

12331472 is a deficient number, since it is larger than the sum of its proper divisors (11967568).

12331472 is a wasteful number, since it uses less digits than its factorization.

12331472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130 (or 13124 counting only the distinct ones).

The product of its digits is 1008, while the sum is 23.

The square root of 12331472 is about 3511.6195693725. The cubic root of 12331472 is about 231.0317354249.

Adding to 12331472 its reverse (27413321), we get a palindrome (39744793).

The spelling of 12331472 in words is "twelve million, three hundred thirty-one thousand, four hundred seventy-two".