213100303 has 16 divisors (see below), whose sum is σ = 239855616. Its totient is φ = 188022240.

The previous prime is 213100273. The next prime is 213100331. The reversal of 213100303 is 303001312.

It is a cyclic number.

It is not a de Polignac number, because 213100303 - 2²⁵ = 179545871 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213100343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22218 + ... + 30328.

It is an arithmetic number, because the mean of its divisors is an integer number (14990976).

Almost surely, 2^213100303 is an apocalyptic number.

213100303 is a deficient number, since it is larger than the sum of its proper divisors (26755313).

213100303 is a wasteful number, since it uses less digits than its factorization.

213100303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8214.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 213100303 is about 14597.9554390332. The cubic root of 213100303 is about 597.3029904339.

Adding to 213100303 its reverse (303001312), we get a palindrome (516101615).

The spelling of 213100303 in words is "two hundred thirteen million, one hundred thousand, three hundred three".