1000323220303 has 4 divisors (see below), whose sum is σ = 1091261694888. Its totient is φ = 909384745720.

The previous prime is 1000323220217. The next prime is 1000323220319. The reversal of 1000323220303 is 3030223230001.

It is a happy number.

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

It is not a de Polignac number, because 1000323220303 - 2¹³ = 1000323212111 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 (1000323220003) 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, 45469237276 + ... + 45469237297.

It is an arithmetic number, because the mean of its divisors is an integer number (272815423722).

Almost surely, 2^{1000323220303} is an apocalyptic number.

1000323220303 is a deficient number, since it is larger than the sum of its proper divisors (90938474585).

1000323220303 is an equidigital number, since it uses as much as digits as its factorization.

1000323220303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90938474584.

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 1000323220303 its reverse (3030223230001), we get a palindrome (4030546450304).

The spelling of 1000323220303 in words is "one trillion, three hundred twenty-three million, two hundred twenty thousand, three hundred three".