12011999983 has 2 divisors, whose sum is σ = 12011999984. Its totient is φ = 12011999982.

The previous prime is 12011999963. The next prime is 12012000031. The reversal of 12011999983 is 38999911021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011999983 - 2²⁵ = 11978445551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12011999983.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011999963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005999991 + 6005999992.

It is an arithmetic number, because the mean of its divisors is an integer number (6005999992).

Almost surely, 2^12011999983 is an apocalyptic number.

12011999983 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011999983 is an equidigital number, since it uses as much as digits as its factorization.

12011999983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 52.

The spelling of 12011999983 in words is "twelve billion, eleven million, nine hundred ninety-nine thousand, nine hundred eighty-three".