12031983 has 20 divisors (see below), whose sum is σ = 18417168. Its totient is φ = 7823520.

The previous prime is 12031973. The next prime is 12031991. The reversal of 12031983 is 38913021.

12031983 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12031983 - 2⁸ = 12031727 is a prime.

It is a super-2 number, since 2×12031983² = 289537229824578, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031913) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1510 + ... + 5132.

Almost surely, 2^12031983 is an apocalyptic number.

12031983 is a deficient number, since it is larger than the sum of its proper divisors (6385185).

12031983 is an equidigital number, since it uses as much as digits as its factorization.

12031983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3676 (or 3667 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 12031983 is about 3468.7148917142. The cubic root of 12031983 is about 229.1460647191.

The spelling of 12031983 in words is "twelve million, thirty-one thousand, nine hundred eighty-three".