311323331101242 has 16 divisors (see below), whose sum is σ = 625230258314112. Its totient is φ = 103343844348480.

The previous prime is 311323331101241. The next prime is 311323331101249. The reversal of 311323331101242 is 242101133323113.

It is not an unprimeable number, because it can be changed into a prime (311323331101241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107649836418 + ... + 107649839309.

It is an arithmetic number, because the mean of its divisors is an integer number (39076891144632).

Almost surely, 2^{311323331101242} is an apocalyptic number.

311323331101242 is an abundant number, since it is smaller than the sum of its proper divisors (313906927212870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311323331101242 is a wasteful number, since it uses less digits than its factorization.

311323331101242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215299675973.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 311323331101242 its reverse (242101133323113), we get a palindrome (553424464424355).

The spelling of 311323331101242 in words is "three hundred eleven trillion, three hundred twenty-three billion, three hundred thirty-one million, one hundred one thousand, two hundred forty-two".