11115144326442 has 32 divisors (see below), whose sum is σ = 23977659343680. Its totient is φ = 3414708910080.

The previous prime is 11115144326353. The next prime is 11115144326479. The reversal of 11115144326442 is 24462344151111.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 11115144326442.

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 15 ways as a sum of consecutive naturals, for example, 111105892 + ... + 111205887.

It is an arithmetic number, because the mean of its divisors is an integer number (749301854490).

Almost surely, 2^{11115144326442} is an apocalyptic number.

11115144326442 is an abundant number, since it is smaller than the sum of its proper divisors (12862515017238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11115144326442 is a wasteful number, since it uses less digits than its factorization.

11115144326442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222312438.

The product of its digits is 92160, while the sum is 39.

Adding to 11115144326442 its reverse (24462344151111), we get a palindrome (35577488477553).

The spelling of 11115144326442 in words is "eleven trillion, one hundred fifteen billion, one hundred forty-four million, three hundred twenty-six thousand, four hundred forty-two".