20032002001 has 4 divisors (see below), whose sum is σ = 21853093104. Its totient is φ = 18210910900.

The previous prime is 20032001999. The next prime is 20032002013. The reversal of 20032002001 is 10020023002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20032002001 - 2¹ = 20032001999 is a prime.

It is a super-2 number, since 2×20032002001² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20032002031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 910545535 + ... + 910545556.

It is an arithmetic number, because the mean of its divisors is an integer number (5463273276).

Almost surely, 2^20032002001 is an apocalyptic number.

It is an amenable number.

20032002001 is a deficient number, since it is larger than the sum of its proper divisors (1821091103).

20032002001 is a wasteful number, since it uses less digits than its factorization.

20032002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1821091102.

The product of its (nonzero) digits is 24, while the sum is 10.

Adding to 20032002001 its reverse (10020023002), we get a palindrome (30052025003).

The spelling of 20032002001 in words is "twenty billion, thirty-two million, two thousand, one".