311201343242 has 16 divisors (see below), whose sum is σ = 480433373280. Its totient is φ = 151120435152.

The previous prime is 311201343169. The next prime is 311201343247. The reversal of 311201343242 is 242343102113.

It is not an unprimeable number, because it can be changed into a prime (311201343247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15877553 + ... + 15897140.

It is an arithmetic number, because the mean of its divisors is an integer number (30027085830).

Almost surely, 2^311201343242 is an apocalyptic number.

311201343242 is a deficient number, since it is larger than the sum of its proper divisors (169232030038).

311201343242 is a wasteful number, since it uses less digits than its factorization.

311201343242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31774837.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 311201343242 its reverse (242343102113), we get a palindrome (553544445355).

The spelling of 311201343242 in words is "three hundred eleven billion, two hundred one million, three hundred forty-three thousand, two hundred forty-two".