12011983 has 2 divisors, whose sum is σ = 12011984. Its totient is φ = 12011982.

The previous prime is 12011977. The next prime is 12012017. The reversal of 12011983 is 38911021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011983 - 2⁹ = 12011471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005991 + 6005992.

It is an arithmetic number, because the mean of its divisors is an integer number (6005992).

Almost surely, 2^12011983 is an apocalyptic number.

12011983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011983 is an equidigital number, since it uses as much as digits as its factorization.

12011983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 12011983 is about 3465.8307806354. The cubic root of 12011983 is about 229.0190293296.

The spelling of 12011983 in words is "twelve million, eleven thousand, nine hundred eighty-three".