311213334434 has 8 divisors (see below), whose sum is σ = 466849433088. Its totient is φ = 155596856740.

The previous prime is 311213334431. The next prime is 311213334473. The reversal of 311213334434 is 434433312113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 311213334434.

It is not an unprimeable number, because it can be changed into a prime (311213334431) 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 3 ways as a sum of consecutive naturals, for example, 4865522 + ... + 4929069.

It is an arithmetic number, because the mean of its divisors is an integer number (58356179136).

Almost surely, 2^311213334434 is an apocalyptic number.

311213334434 is a deficient number, since it is larger than the sum of its proper divisors (155636098654).

311213334434 is a wasteful number, since it uses less digits than its factorization.

311213334434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9810480.

The product of its digits is 31104, while the sum is 32.

Adding to 311213334434 its reverse (434433312113), we get a palindrome (745646646547).

The spelling of 311213334434 in words is "three hundred eleven billion, two hundred thirteen million, three hundred thirty-four thousand, four hundred thirty-four".