1142442203 has 24 divisors (see below), whose sum is σ = 1406235600. Its totient is φ = 922840128.

The previous prime is 1142442173. The next prime is 1142442263. The reversal of 1142442203 is 3022442411.

It is not a de Polignac number, because 1142442203 - 2⁶ = 1142442139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142442263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180293 + ... + 186521.

It is an arithmetic number, because the mean of its divisors is an integer number (58593150).

Almost surely, 2^1142442203 is an apocalyptic number.

1142442203 is a deficient number, since it is larger than the sum of its proper divisors (263793397).

1142442203 is a wasteful number, since it uses less digits than its factorization.

1142442203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6459 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1142442203 is about 33800.0325887417. The cubic root of 1142442203 is about 1045.3893691838.

Adding to 1142442203 its reverse (3022442411), we get a palindrome (4164884614).

The spelling of 1142442203 in words is "one billion, one hundred forty-two million, four hundred forty-two thousand, two hundred three".