2002013213 has 4 divisors (see below), whose sum is σ = 2021835228. Its totient is φ = 1982191200.

The previous prime is 2002013207. The next prime is 2002013243. The reversal of 2002013213 is 3123102002.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1230395929 + 771617284 = 35077^2 + 27778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2002013213 - 2¹⁸ = 2001751069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2002013243) 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, 9910856 + ... + 9911057.

It is an arithmetic number, because the mean of its divisors is an integer number (505458807).

Almost surely, 2^2002013213 is an apocalyptic number.

It is an amenable number.

2002013213 is a deficient number, since it is larger than the sum of its proper divisors (19822015).

2002013213 is a wasteful number, since it uses less digits than its factorization.

2002013213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19822014.

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

The square root of 2002013213 is about 44743.8622941739. The cubic root of 2002013213 is about 1260.3436563665.

Adding to 2002013213 its reverse (3123102002), we get a palindrome (5125115215).

It can be divided in two parts, 20020 and 13213, that added together give a palindrome (33233).

The spelling of 2002013213 in words is "two billion, two million, thirteen thousand, two hundred thirteen".