211123983 has 8 divisors (see below), whose sum is σ = 321712768. Its totient is φ = 120642264.

The previous prime is 211123933. The next prime is 211123993. The reversal of 211123983 is 389321112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211123983 - 2⁸ = 211123727 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211123983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211123933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5026741 + ... + 5026782.

It is an arithmetic number, because the mean of its divisors is an integer number (40214096).

Almost surely, 2^211123983 is an apocalyptic number.

211123983 is a deficient number, since it is larger than the sum of its proper divisors (110588785).

211123983 is a wasteful number, since it uses less digits than its factorization.

211123983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053533.

The product of its digits is 2592, while the sum is 30.

The square root of 211123983 is about 14530.1060904592. The cubic root of 211123983 is about 595.4507640397.

The spelling of 211123983 in words is "two hundred eleven million, one hundred twenty-three thousand, nine hundred eighty-three".