213005003 has 4 divisors (see below), whose sum is σ = 213206448. Its totient is φ = 212803560.

The previous prime is 213004949. The next prime is 213005011. The reversal of 213005003 is 300500312.

213005003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 213005003 - 2¹⁴ = 212988619 is a prime.

It is a super-2 number, since 2×213005003² = 90742262606060018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213005033) 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, 99128 + ... + 101253.

It is an arithmetic number, because the mean of its divisors is an integer number (53301612).

Almost surely, 2^213005003 is an apocalyptic number.

213005003 is a deficient number, since it is larger than the sum of its proper divisors (201445).

213005003 is a wasteful number, since it uses less digits than its factorization.

213005003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201444.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 213005003 is about 14594.6909182757. The cubic root of 213005003 is about 597.2139377488.

Adding to 213005003 its reverse (300500312), we get a palindrome (513505315).

The spelling of 213005003 in words is "two hundred thirteen million, five thousand, three".