1001322303 has 16 divisors (see below), whose sum is σ = 1356237696. Its totient is φ = 656995680.

The previous prime is 1001322299. The next prime is 1001322307. The reversal of 1001322303 is 3032231001.

It is an interprime number because it is at equal distance from previous prime (1001322299) and next prime (1001322307).

It is not a de Polignac number, because 1001322303 - 2² = 1001322299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001322307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 445300 + ... + 447542.

It is an arithmetic number, because the mean of its divisors is an integer number (84764856).

Almost surely, 2^1001322303 is an apocalyptic number.

1001322303 is a deficient number, since it is larger than the sum of its proper divisors (354915393).

1001322303 is a wasteful number, since it uses less digits than its factorization.

1001322303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1001322303 is about 31643.6771409392. The cubic root of 1001322303 is about 1000.4405735331.

Adding to 1001322303 its reverse (3032231001), we get a palindrome (4033553304).

The spelling of 1001322303 in words is "one billion, one million, three hundred twenty-two thousand, three hundred three".