2001322032003 has 24 divisors (see below), whose sum is σ = 3303877896800. Its totient is φ = 1143575138304.

The previous prime is 2001322032001. The next prime is 2001322032007. The reversal of 2001322032003 is 3002302231002.

It is a happy number.

2001322032003 is a `hidden beast` number, since 20 + 0 + 1 + 322 + 0 + 320 + 0 + 3 = 666.

It is not a de Polignac number, because 2001322032003 - 2¹ = 2001322032001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001322032001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1479393 + ... + 2488221.

Almost surely, 2^{2001322032003} is an apocalyptic number.

2001322032003 is a deficient number, since it is larger than the sum of its proper divisors (1302555864797).

2001322032003 is a wasteful number, since it uses less digits than its factorization.

2001322032003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040331 (or 1040328 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 2001322032003 its reverse (3002302231002), we get a palindrome (5003624263005).

The spelling of 2001322032003 in words is "two trillion, one billion, three hundred twenty-two million, thirty-two thousand, three".