311440332204442 has 16 divisors (see below), whose sum is σ = 534361567905792. Its totient is φ = 133358464198800.

The previous prime is 311440332204389. The next prime is 311440332204467. The reversal of 311440332204442 is 244402233044113.

It is a super-2 number, since 2×311440332204442² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9663640713 + ... + 9663672940.

It is an arithmetic number, because the mean of its divisors is an integer number (33397597994112).

Almost surely, 2^{311440332204442} is an apocalyptic number.

311440332204442 is a deficient number, since it is larger than the sum of its proper divisors (222921235701350).

311440332204442 is a wasteful number, since it uses less digits than its factorization.

311440332204442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19327314813.

The product of its (nonzero) digits is 221184, while the sum is 37.

Adding to 311440332204442 its reverse (244402233044113), we get a palindrome (555842565248555).

The spelling of 311440332204442 in words is "three hundred eleven trillion, four hundred forty billion, three hundred thirty-two million, two hundred four thousand, four hundred forty-two".