1143144120142 has 4 divisors (see below), whose sum is σ = 1714716180216. Its totient is φ = 571572060070.

The previous prime is 1143144120121. The next prime is 1143144120143. The reversal of 1143144120142 is 2410214413411.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1143144120142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143144120143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285786030034 + ... + 285786030037.

It is an arithmetic number, because the mean of its divisors is an integer number (428679045054).

Almost surely, 2^{1143144120142} is an apocalyptic number.

1143144120142 is a deficient number, since it is larger than the sum of its proper divisors (571572060074).

1143144120142 is an equidigital number, since it uses as much as digits as its factorization.

1143144120142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571572060073.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1143144120142 its reverse (2410214413411), we get a palindrome (3553358533553).

The spelling of 1143144120142 in words is "one trillion, one hundred forty-three billion, one hundred forty-four million, one hundred twenty thousand, one hundred forty-two".