1142243143112 has 16 divisors (see below), whose sum is σ = 2171044331340. Its totient is φ = 563297988096.

The previous prime is 1142243143109. The next prime is 1142243143127. The reversal of 1142243143112 is 2113413422411.

It can be written as a sum of positive squares in 2 ways, for example, as 1126090258276 + 16152884836 = 1061174^2 + 127094^2 .

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 3 ways as a sum of consecutive naturals, for example, 977947313 + ... + 977948480.

Almost surely, 2^{1142243143112} is an apocalyptic number.

It is an amenable number.

1142243143112 is a deficient number, since it is larger than the sum of its proper divisors (1028801188228).

1142243143112 is a wasteful number, since it uses less digits than its factorization.

1142243143112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1955895872 (or 1955895868 counting only the distinct ones).

The product of its digits is 4608, while the sum is 29.

Adding to 1142243143112 its reverse (2113413422411), we get a palindrome (3255656565523).

The spelling of 1142243143112 in words is "one trillion, one hundred forty-two billion, two hundred forty-three million, one hundred forty-three thousand, one hundred twelve".