311443314442 has 8 divisors (see below), whose sum is σ = 503100738756. Its totient is φ = 143743068192.

The previous prime is 311443314437. The next prime is 311443314487. The reversal of 311443314442 is 244413344113.

It can be written as a sum of positive squares in 2 ways, for example, as 292887698481 + 18555615961 = 541191^2 + 136219^2 .

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

It is a super-2 number, since 2×311443314442² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311443314398 and 311443314407.

It is an unprimeable number.

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, 5989294483 + ... + 5989294534.

Almost surely, 2^311443314442 is an apocalyptic number.

311443314442 is a deficient number, since it is larger than the sum of its proper divisors (191657424314).

311443314442 is a wasteful number, since it uses less digits than its factorization.

311443314442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11978589032.

The product of its digits is 55296, while the sum is 34.

Adding to 311443314442 its reverse (244413344113), we get a palindrome (555856658555).

The spelling of 311443314442 in words is "three hundred eleven billion, four hundred forty-three million, three hundred fourteen thousand, four hundred forty-two".