1003133243 has 6 divisors (see below), whose sum is σ = 1166910156. Its totient is φ = 859828452.

The previous prime is 1003133221. The next prime is 1003133273. The reversal of 1003133243 is 3423313001.

It is not a de Polignac number, because 1003133243 - 2¹⁶ = 1003067707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003133273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10236005 + ... + 10236102.

It is an arithmetic number, because the mean of its divisors is an integer number (194485026).

Almost surely, 2^1003133243 is an apocalyptic number.

1003133243 is a deficient number, since it is larger than the sum of its proper divisors (163776913).

1003133243 is an equidigital number, since it uses as much as digits as its factorization.

1003133243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20472121 (or 20472114 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1003133243 is about 31672.2787781366. The cubic root of 1003133243 is about 1001.0433254268.

Adding to 1003133243 its reverse (3423313001), we get a palindrome (4426446244).

The spelling of 1003133243 in words is "one billion, three million, one hundred thirty-three thousand, two hundred forty-three".