311431323113313 has 64 divisors (see below), whose sum is σ = 462817980092160. Its totient is φ = 185049905356800.

The previous prime is 311431323113263. The next prime is 311431323113333. The reversal of 311431323113313 is 313311323134113.

It is not a de Polignac number, because 311431323113313 - 2¹³ = 311431323105121 is a prime.

It is a super-2 number, since 2×311431323113313² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311431323113333) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 152536270 + ... + 154564472.

It is an arithmetic number, because the mean of its divisors is an integer number (7231530938940).

Almost surely, 2^{311431323113313} is an apocalyptic number.

It is an amenable number.

311431323113313 is a deficient number, since it is larger than the sum of its proper divisors (151386656978847).

311431323113313 is a wasteful number, since it uses less digits than its factorization.

311431323113313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029250.

The product of its digits is 17496, while the sum is 33.

Adding to 311431323113313 its reverse (313311323134113), we get a palindrome (624742646247426).

The spelling of 311431323113313 in words is "three hundred eleven trillion, four hundred thirty-one billion, three hundred twenty-three million, one hundred thirteen thousand, three hundred thirteen".