311213323113 has 32 divisors (see below), whose sum is σ = 517815370752. Its totient is φ = 161521214400.

The previous prime is 311213323073. The next prime is 311213323151. The reversal of 311213323113 is 311323312113.

It is not a de Polignac number, because 311213323113 - 2¹² = 311213319017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (311213323193) 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 31 ways as a sum of consecutive naturals, for example, 363823 + ... + 868788.

It is an arithmetic number, because the mean of its divisors is an integer number (16181730336).

Almost surely, 2^311213323113 is an apocalyptic number.

311213323113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

311213323113 is a deficient number, since it is larger than the sum of its proper divisors (206602047639).

311213323113 is a wasteful number, since it uses less digits than its factorization.

311213323113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233725.

The product of its digits is 972, while the sum is 24.

Adding to 311213323113 its reverse (311323312113), we get a palindrome (622536635226).

The spelling of 311213323113 in words is "three hundred eleven billion, two hundred thirteen million, three hundred twenty-three thousand, one hundred thirteen".