12011803983 has 16 divisors (see below), whose sum is σ = 18131027040. Its totient is φ = 7856776512.

The previous prime is 12011803963. The next prime is 12011804011. The reversal of 12011803983 is 38930811021.

It is not a de Polignac number, because 12011803983 - 2²⁵ = 11978249551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011803943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4195566 + ... + 4198427.

It is an arithmetic number, because the mean of its divisors is an integer number (1133189190).

Almost surely, 2^12011803983 is an apocalyptic number.

12011803983 is a deficient number, since it is larger than the sum of its proper divisors (6119223057).

12011803983 is an equidigital number, since it uses as much as digits as its factorization.

12011803983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8394055 (or 8394049 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The spelling of 12011803983 in words is "twelve billion, eleven million, eight hundred three thousand, nine hundred eighty-three".