12331056 has 40 divisors (see below), whose sum is σ = 32886784. Its totient is φ = 3977280.

The previous prime is 12331049. The next prime is 12331063. The reversal of 12331056 is 65013321.

It is an interprime number because it is at equal distance from previous prime (12331049) and next prime (12331063).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2656 + ... + 5631.

Almost surely, 2^12331056 is an apocalyptic number.

12331056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12331056 is an abundant number, since it is smaller than the sum of its proper divisors (20555728).

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

12331056 is a wasteful number, since it uses less digits than its factorization.

12331056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8329 (or 8323 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 12331056 is about 3511.5603369442. The cubic root of 12331056 is about 231.0291374576.

Adding to 12331056 its reverse (65013321), we get a palindrome (77344377).

The spelling of 12331056 in words is "twelve million, three hundred thirty-one thousand, fifty-six".