1140242340442 has 16 divisors (see below), whose sum is σ = 1767992140800. Its totient is φ = 550962785520.

The previous prime is 1140242340401. The next prime is 1140242340443. The reversal of 1140242340442 is 2440432420411.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (1140242340443) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 12744717 + ... + 12833872.

It is an arithmetic number, because the mean of its divisors is an integer number (110499508800).

Almost surely, 2^{1140242340442} is an apocalyptic number.

1140242340442 is a deficient number, since it is larger than the sum of its proper divisors (627749800358).

1140242340442 is a wasteful number, since it uses less digits than its factorization.

1140242340442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25579341.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 1140242340442 its reverse (2440432420411), we get a palindrome (3580674760853).

The spelling of 1140242340442 in words is "one trillion, one hundred forty billion, two hundred forty-two million, three hundred forty thousand, four hundred forty-two".