311350513323 has 4 divisors (see below), whose sum is σ = 415134017768. Its totient is φ = 207567008880.

The previous prime is 311350513321. The next prime is 311350513333. The reversal of 311350513323 is 323315053113.

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

It is not a de Polignac number, because 311350513323 - 2¹ = 311350513321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311350513321) 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, 51891752218 + ... + 51891752223.

It is an arithmetic number, because the mean of its divisors is an integer number (103783504442).

Almost surely, 2^311350513323 is an apocalyptic number.

311350513323 is a deficient number, since it is larger than the sum of its proper divisors (103783504445).

311350513323 is a wasteful number, since it uses less digits than its factorization.

311350513323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103783504444.

The product of its (nonzero) digits is 12150, while the sum is 30.

Adding to 311350513323 its reverse (323315053113), we get a palindrome (634665566436).

The spelling of 311350513323 in words is "three hundred eleven billion, three hundred fifty million, five hundred thirteen thousand, three hundred twenty-three".