1142530203 has 16 divisors (see below), whose sum is σ = 1665017856. Its totient is φ = 693755520.

The previous prime is 1142530201. The next prime is 1142530217. The reversal of 1142530203 is 3020352411.

It is not a de Polignac number, because 1142530203 - 2¹ = 1142530201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142530203.

It is not an unprimeable number, because it can be changed into a prime (1142530201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 359751 + ... + 362912.

It is an arithmetic number, because the mean of its divisors is an integer number (104063616).

Almost surely, 2^1142530203 is an apocalyptic number.

1142530203 is a deficient number, since it is larger than the sum of its proper divisors (522487653).

1142530203 is a wasteful number, since it uses less digits than its factorization.

1142530203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722714.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1142530203 is about 33801.3343375672. The cubic root of 1142530203 is about 1045.4162099005.

Adding to 1142530203 its reverse (3020352411), we get a palindrome (4162882614).

The spelling of 1142530203 in words is "one billion, one hundred forty-two million, five hundred thirty thousand, two hundred three".