311012321210113 has 4 divisors (see below), whose sum is σ = 311903473993300. Its totient is φ = 310121168426928.

The previous prime is 311012321210053. The next prime is 311012321210161. The reversal of 311012321210113 is 311012123210113.

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 186169978825744 + 124842342384369 = 13644412^2 + 11173287^2 .

It is a cyclic number.

It is not a de Polignac number, because 311012321210113 - 2²¹ = 311012319112961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311012325210113) 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, 445576391070 + ... + 445576391767.

It is an arithmetic number, because the mean of its divisors is an integer number (77975868498325).

Almost surely, 2^{311012321210113} is an apocalyptic number.

It is an amenable number.

311012321210113 is a deficient number, since it is larger than the sum of its proper divisors (891152783187).

311012321210113 is an equidigital number, since it uses as much as digits as its factorization.

311012321210113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891152783186.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 311012321210113 its reverse (311012123210113), we get a palindrome (622024444420226).

The spelling of 311012321210113 in words is "three hundred eleven trillion, twelve billion, three hundred twenty-one million, two hundred ten thousand, one hundred thirteen".