210311112313 has 4 divisors (see below), whose sum is σ = 210913723300. Its totient is φ = 209708501328.

The previous prime is 210311112311. The next prime is 210311112359. The reversal of 210311112313 is 313211113012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 84862681344 + 125448430969 = 291312^2 + 354187^2 .

It is a cyclic number.

It is not a de Polignac number, because 210311112313 - 2¹ = 210311112311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210311112311) 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, 301304970 + ... + 301305667.

It is an arithmetic number, because the mean of its divisors is an integer number (52728430825).

Almost surely, 2^210311112313 is an apocalyptic number.

It is an amenable number.

210311112313 is a deficient number, since it is larger than the sum of its proper divisors (602610987).

210311112313 is an equidigital number, since it uses as much as digits as its factorization.

210311112313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 602610986.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 210311112313 its reverse (313211113012), we get a palindrome (523522225325).

It can be divided in two parts, 210311 and 112313, that added together give a square (322624 = 568²).

The spelling of 210311112313 in words is "two hundred ten billion, three hundred eleven million, one hundred twelve thousand, three hundred thirteen".