311433334312013 has 16 divisors (see below), whose sum is σ = 317466542265600. Its totient is φ = 305461905041664.

The previous prime is 311433334312003. The next prime is 311433334312021. The reversal of 311433334312013 is 310213433334113.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 311433334312013 - 2⁶ = 311433334311949 is a prime.

It is a super-2 number, since 2×311433334312013² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311433334312003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6719795 + ... + 25846127.

It is an arithmetic number, because the mean of its divisors is an integer number (19841658891600).

Almost surely, 2^{311433334312013} is an apocalyptic number.

It is an amenable number.

311433334312013 is a deficient number, since it is larger than the sum of its proper divisors (6033207953587).

311433334312013 is a wasteful number, since it uses less digits than its factorization.

311433334312013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19127948.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 311433334312013 its reverse (310213433334113), we get a palindrome (621646767646126).

The spelling of 311433334312013 in words is "three hundred eleven trillion, four hundred thirty-three billion, three hundred thirty-four million, three hundred twelve thousand, thirteen".