1311444341242 has 16 divisors (see below), whose sum is σ = 2248429923072. Its totient is φ = 561987668880.

The previous prime is 1311444341219. The next prime is 1311444341267. The reversal of 1311444341242 is 2421434441131.

It is a junction number, because it is equal to n+sod(n) for n = 1311444341198 and 1311444341207.

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 7 ways as a sum of consecutive naturals, for example, 4855993 + ... + 5118940.

It is an arithmetic number, because the mean of its divisors is an integer number (140526870192).

Almost surely, 2^{1311444341242} is an apocalyptic number.

1311444341242 is a deficient number, since it is larger than the sum of its proper divisors (936985581830).

1311444341242 is an equidigital number, since it uses as much as digits as its factorization.

1311444341242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9984333.

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

Adding to 1311444341242 its reverse (2421434441131), we get a palindrome (3732878782373).

The spelling of 1311444341242 in words is "one trillion, three hundred eleven billion, four hundred forty-four million, three hundred forty-one thousand, two hundred forty-two".