20003001 has 8 divisors (see below), whose sum is σ = 26768064. Its totient is φ = 13286640.

The previous prime is 20002981. The next prime is 20003003. The reversal of 20003001 is 10030002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20003001 - 2¹⁰ = 20001977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20003003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11205 + ... + 12866.

It is an arithmetic number, because the mean of its divisors is an integer number (3346008).

Almost surely, 2^20003001 is an apocalyptic number.

It is an amenable number.

20003001 is a deficient number, since it is larger than the sum of its proper divisors (6765063).

20003001 is a wasteful number, since it uses less digits than its factorization.

20003001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24351.

The product of its (nonzero) digits is 6, while the sum is 6.

The square root of 20003001 is about 4472.4714644143. The cubic root of 20003001 is about 271.4553375926.

Adding to 20003001 its reverse (10030002), we get a palindrome (30033003).

The spelling of 20003001 in words is "twenty million, three thousand, one".