1066240303 has 4 divisors (see below), whose sum is σ = 1103007240. Its totient is φ = 1029473368.

The previous prime is 1066240283. The next prime is 1066240313. The reversal of 1066240303 is 3030426601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1066240303 is a prime.

It is a super-2 number, since 2×1066240303² = 2273736767483063618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066240313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18383425 + ... + 18383482.

It is an arithmetic number, because the mean of its divisors is an integer number (275751810).

Almost surely, 2^1066240303 is an apocalyptic number.

1066240303 is a deficient number, since it is larger than the sum of its proper divisors (36766937).

1066240303 is an equidigital number, since it uses as much as digits as its factorization.

1066240303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36766936.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1066240303 is about 32653.3352507826. The cubic root of 1066240303 is about 1021.6097556740.

Adding to 1066240303 its reverse (3030426601), we get a palindrome (4096666904).

The spelling of 1066240303 in words is "one billion, sixty-six million, two hundred forty thousand, three hundred three".