211442983 has 2 divisors, whose sum is σ = 211442984. Its totient is φ = 211442982.

The previous prime is 211442981. The next prime is 211443007. The reversal of 211442983 is 389244112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211442983 - 2¹ = 211442981 is a prime.

Together with 211442981, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211442981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105721491 + 105721492.

It is an arithmetic number, because the mean of its divisors is an integer number (105721492).

Almost surely, 2^211442983 is an apocalyptic number.

211442983 is a deficient number, since it is larger than the sum of its proper divisors (1).

211442983 is an equidigital number, since it uses as much as digits as its factorization.

211442983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 34.

The square root of 211442983 is about 14541.0791552759. The cubic root of 211442983 is about 595.7505139826.

The spelling of 211442983 in words is "two hundred eleven million, four hundred forty-two thousand, nine hundred eighty-three".