2001203013 has 4 divisors (see below), whose sum is σ = 2668270688. Its totient is φ = 1334135340.

The previous prime is 2001202999. The next prime is 2001203041. The reversal of 2001203013 is 3103021002.

It is a happy number.

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 not a de Polignac number, because 2001203013 - 2⁵ = 2001202981 is a prime.

It is a super-3 number, since 3×2001203013³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001203013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001203213) 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, 333533833 + ... + 333533838.

It is an arithmetic number, because the mean of its divisors is an integer number (667067672).

Almost surely, 2^2001203013 is an apocalyptic number.

It is an amenable number.

2001203013 is a deficient number, since it is larger than the sum of its proper divisors (667067675).

2001203013 is an equidigital number, since it uses as much as digits as its factorization.

2001203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667067674.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2001203013 is about 44734.8076222532. The cubic root of 2001203013 is about 1260.1736161619.

Adding to 2001203013 its reverse (3103021002), we get a palindrome (5104224015).

The spelling of 2001203013 in words is "two billion, one million, two hundred three thousand, thirteen".