1045243303 has 32 divisors (see below), whose sum is σ = 1218986496. Its totient is φ = 888547968.

The previous prime is 1045243289. The next prime is 1045243307. The reversal of 1045243303 is 3033425401.

It is a cyclic number.

It is not a de Polignac number, because 1045243303 - 2¹³ = 1045235111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045243307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1183300 + ... + 1184182.

It is an arithmetic number, because the mean of its divisors is an integer number (38093328).

Almost surely, 2^1045243303 is an apocalyptic number.

1045243303 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1045243303 is a deficient number, since it is larger than the sum of its proper divisors (173743193).

1045243303 is a wasteful number, since it uses less digits than its factorization.

1045243303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1045243303 is about 32330.2227490007. Note that the first 3 decimals coincide. The cubic root of 1045243303 is about 1014.8592112229.

Adding to 1045243303 its reverse (3033425401), we get a palindrome (4078668704).

The spelling of 1045243303 in words is "one billion, forty-five million, two hundred forty-three thousand, three hundred three".