1000220303 has 8 divisors (see below), whose sum is σ = 1005775056. Its totient is φ = 994676800.

The previous prime is 1000220269. The next prime is 1000220329. The reversal of 1000220303 is 3030220001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000220303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000220503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224033 + ... + 228453.

It is an arithmetic number, because the mean of its divisors is an integer number (125721882).

Almost surely, 2^1000220303 is an apocalyptic number.

1000220303 is a deficient number, since it is larger than the sum of its proper divisors (5554753).

1000220303 is an equidigital number, since it uses as much as digits as its factorization.

1000220303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5625.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 1000220303 is about 31626.2597061366. The cubic root of 1000220303 is about 1000.0734289414.

Adding to 1000220303 its reverse (3030220001), we get a palindrome (4030440304).

The spelling of 1000220303 in words is "one billion, two hundred twenty thousand, three hundred three".