311302230013 has 4 divisors (see below), whose sum is σ = 311308434400. Its totient is φ = 311296025628.

The previous prime is 311302229981. The next prime is 311302230037. The reversal of 311302230013 is 310032203113.

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 311302230013 - 2⁵ = 311302229981 is a prime.

It is a super-2 number, since 2×311302230013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311302233013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3026313 + ... + 3127486.

It is an arithmetic number, because the mean of its divisors is an integer number (77827108600).

Almost surely, 2^311302230013 is an apocalyptic number.

It is an amenable number.

311302230013 is a deficient number, since it is larger than the sum of its proper divisors (6204387).

311302230013 is an equidigital number, since it uses as much as digits as its factorization.

311302230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6204386.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 311302230013 its reverse (310032203113), we get a palindrome (621334433126).

The spelling of 311302230013 in words is "three hundred eleven billion, three hundred two million, two hundred thirty thousand, thirteen".