311302200113 has 4 divisors (see below), whose sum is σ = 312184076388. Its totient is φ = 310420323840.

The previous prime is 311302200103. The next prime is 311302200179. The reversal of 311302200113 is 311002203113.

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 85741795489 + 225560404624 = 292817^2 + 474932^2 .

It is a cyclic number.

It is not a de Polignac number, because 311302200113 - 2¹² = 311302196017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311302200091 and 311302200100.

It is not an unprimeable number, because it can be changed into a prime (311302200103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440937608 + ... + 440938313.

It is an arithmetic number, because the mean of its divisors is an integer number (78046019097).

Almost surely, 2^311302200113 is an apocalyptic number.

It is an amenable number.

311302200113 is a deficient number, since it is larger than the sum of its proper divisors (881876275).

311302200113 is an equidigital number, since it uses as much as digits as its factorization.

311302200113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881876274.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 311302200113 its reverse (311002203113), we get a palindrome (622304403226).

The spelling of 311302200113 in words is "three hundred eleven billion, three hundred two million, two hundred thousand, one hundred thirteen".