12031256 has 16 divisors (see below), whose sum is σ = 23746200. Its totient is φ = 5698944.

The previous prime is 12031249. The next prime is 12031267. The reversal of 12031256 is 65213021.

12031256 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12031256² = 289502241875072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39425 + ... + 39728.

Almost surely, 2^12031256 is an apocalyptic number.

It is an amenable number.

12031256 is a deficient number, since it is larger than the sum of its proper divisors (11714944).

12031256 is a wasteful number, since it uses less digits than its factorization.

12031256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79178 (or 79174 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 12031256 is about 3468.6100962778. The cubic root of 12031256 is about 229.1414494493.

Adding to 12031256 its reverse (65213021), we get a palindrome (77244277).

The spelling of 12031256 in words is "twelve million, thirty-one thousand, two hundred fifty-six".