311213333333 has 12 divisors (see below), whose sum is σ = 362666731680. Its totient is φ = 266280453432.

The previous prime is 311213333311. The next prime is 311213333377. The reversal of 311213333333 is 333333312113.

It is a happy number.

It is not a de Polignac number, because 311213333333 - 2¹⁴ = 311213316949 is a prime.

It is a Duffinian number.

311213333333 is a modest number, since divided by 333333 gives 311213 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 311213333296 and 311213333305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311213330333) 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 11 ways as a sum of consecutive naturals, for example, 5612993 + ... + 5668166.

It is an arithmetic number, because the mean of its divisors is an integer number (30222227640).

Almost surely, 2^311213333333 is an apocalyptic number.

It is an amenable number.

311213333333 is a deficient number, since it is larger than the sum of its proper divisors (51453398347).

311213333333 is a wasteful number, since it uses less digits than its factorization.

311213333333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11281736 (or 11281729 counting only the distinct ones).

The product of its digits is 13122, while the sum is 29.

Adding to 311213333333 its reverse (333333312113), we get a palindrome (644546645446).

The spelling of 311213333333 in words is "three hundred eleven billion, two hundred thirteen million, three hundred thirty-three thousand, three hundred thirty-three".