11142142303 has 4 divisors (see below), whose sum is σ = 11142430768. Its totient is φ = 11141853840.

The previous prime is 11142142289. The next prime is 11142142309. The reversal of 11142142303 is 30324124111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30324124111 = 60413 ⋅501947.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11142142303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142142309) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 75318 + ... + 167203.

It is an arithmetic number, because the mean of its divisors is an integer number (2785607692).

Almost surely, 2^11142142303 is an apocalyptic number.

11142142303 is a deficient number, since it is larger than the sum of its proper divisors (288465).

11142142303 is an equidigital number, since it uses as much as digits as its factorization.

11142142303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288464.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 11142142303 its reverse (30324124111), we get a palindrome (41466266414).

The spelling of 11142142303 in words is "eleven billion, one hundred forty-two million, one hundred forty-two thousand, three hundred three".