213320983 has 2 divisors, whose sum is σ = 213320984. Its totient is φ = 213320982.

The previous prime is 213320969. The next prime is 213320993. The reversal of 213320983 is 389023312.

213320983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213320983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213320953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106660491 + 106660492.

It is an arithmetic number, because the mean of its divisors is an integer number (106660492).

Almost surely, 2^213320983 is an apocalyptic number.

213320983 is a deficient number, since it is larger than the sum of its proper divisors (1).

213320983 is an equidigital number, since it uses as much as digits as its factorization.

213320983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 213320983 is about 14605.5120759253. The cubic root of 213320983 is about 597.5091020596.

The spelling of 213320983 in words is "two hundred thirteen million, three hundred twenty thousand, nine hundred eighty-three".