1001322002003 has 4 divisors (see below), whose sum is σ = 1001674210968. Its totient is φ = 1000969793040.

The previous prime is 1001322001997. The next prime is 1001322002011. The reversal of 1001322002003 is 3002002231001.

It is a happy number.

1001322002003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 1001322002003 - 2⁴ = 1001322001987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001322005003) 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, 176100218 + ... + 176105903.

It is an arithmetic number, because the mean of its divisors is an integer number (250418552742).

Almost surely, 2^{1001322002003} is an apocalyptic number.

1001322002003 is a deficient number, since it is larger than the sum of its proper divisors (352208965).

1001322002003 is an equidigital number, since it uses as much as digits as its factorization.

1001322002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352208964.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1001322002003 its reverse (3002002231001), we get a palindrome (4003324233004).

The spelling of 1001322002003 in words is "one trillion, one billion, three hundred twenty-two million, two thousand, three".