1142304303 has 32 divisors (see below), whose sum is σ = 1774586880. Its totient is φ = 640120320.

The previous prime is 1142304281. The next prime is 1142304311. The reversal of 1142304303 is 3034032411.

It is not a de Polignac number, because 1142304303 - 2⁸ = 1142304047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1142304303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142304353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291783 + ... + 295671.

It is an arithmetic number, because the mean of its divisors is an integer number (55455840).

Almost surely, 2^1142304303 is an apocalyptic number.

1142304303 is a deficient number, since it is larger than the sum of its proper divisors (632282577).

1142304303 is a wasteful number, since it uses less digits than its factorization.

1142304303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1142304303 is about 33797.9925883180. The cubic root of 1142304303 is about 1045.3473057883.

Adding to 1142304303 its reverse (3034032411), we get a palindrome (4176336714).

The spelling of 1142304303 in words is "one billion, one hundred forty-two million, three hundred four thousand, three hundred three".