211302313 has 4 divisors (see below), whose sum is σ = 213848208. Its totient is φ = 208756420.

The previous prime is 211302307. The next prime is 211302317. The reversal of 211302313 is 313203112.

211302313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 211302313 - 2²⁵ = 177747881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211302317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1272823 + ... + 1272988.

It is an arithmetic number, because the mean of its divisors is an integer number (53462052).

Almost surely, 2^211302313 is an apocalyptic number.

It is an amenable number.

211302313 is a deficient number, since it is larger than the sum of its proper divisors (2545895).

211302313 is an equidigital number, since it uses as much as digits as its factorization.

211302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545894.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 211302313 is about 14536.2413642592. The cubic root of 211302313 is about 595.6183699012.

Adding to 211302313 its reverse (313203112), we get a palindrome (524505425).

The spelling of 211302313 in words is "two hundred eleven million, three hundred two thousand, three hundred thirteen".