213110993 has 2 divisors, whose sum is σ = 213110994. Its totient is φ = 213110992.

The previous prime is 213110983. The next prime is 213111001. The reversal of 213110993 is 399011312.

213110993 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 can be written as a sum of positive squares in only one way, i.e., 127418944 + 85692049 = 11288^2 + 9257^2 .

It is a cyclic number.

It is not a de Polignac number, because 213110993 - 2⁴ = 213110977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (213110903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555496 + 106555497.

It is an arithmetic number, because the mean of its divisors is an integer number (106555497).

Almost surely, 2^213110993 is an apocalyptic number.

It is an amenable number.

213110993 is a deficient number, since it is larger than the sum of its proper divisors (1).

213110993 is an equidigital number, since it uses as much as digits as its factorization.

213110993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 213110993 is about 14598.3215816066. The cubic root of 213110993 is about 597.3129780033.

The spelling of 213110993 in words is "two hundred thirteen million, one hundred ten thousand, nine hundred ninety-three".