311440042401442 has 8 divisors (see below), whose sum is σ = 467170739481600. Its totient is φ = 155716462574244.

The previous prime is 311440042401431. The next prime is 311440042401443. The reversal of 311440042401442 is 244104240044113.

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

It is a super-2 number, since 2×311440042401442² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311440042401398 and 311440042401407.

It is not an unprimeable number, because it can be changed into a prime (311440042401443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1779203842 + ... + 1779378877.

It is an arithmetic number, because the mean of its divisors is an integer number (58396342435200).

Almost surely, 2^{311440042401442} is an apocalyptic number.

311440042401442 is a deficient number, since it is larger than the sum of its proper divisors (155730697080158).

311440042401442 is a wasteful number, since it uses less digits than its factorization.

311440042401442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558626480.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 311440042401442 its reverse (244104240044113), we get a palindrome (555544282445555).

The spelling of 311440042401442 in words is "three hundred eleven trillion, four hundred forty billion, forty-two million, four hundred one thousand, four hundred forty-two".