311440344011242 has 8 divisors (see below), whose sum is σ = 467347156262496. Its totient is φ = 155657958590412.

The previous prime is 311440344011231. The next prime is 311440344011353. The reversal of 311440344011242 is 242110443044113.

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

It is a junction number, because it is equal to n+sod(n) for n = 311440344011198 and 311440344011207.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31106701348 + ... + 31106711359.

It is an arithmetic number, because the mean of its divisors is an integer number (58418394532812).

Almost surely, 2^{311440344011242} is an apocalyptic number.

311440344011242 is a deficient number, since it is larger than the sum of its proper divisors (155906812251254).

311440344011242 is a wasteful number, since it uses less digits than its factorization.

311440344011242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62213415212.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 311440344011242 its reverse (242110443044113), we get a palindrome (553550787055355).

The spelling of 311440344011242 in words is "three hundred eleven trillion, four hundred forty billion, three hundred forty-four million, eleven thousand, two hundred forty-two".