213234303 has 16 divisors (see below), whose sum is σ = 294497280. Its totient is φ = 137076576.

The previous prime is 213234269. The next prime is 213234341. The reversal of 213234303 is 303432312.

It is not a de Polignac number, because 213234303 - 2¹² = 213230207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213234303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213233303) 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, 114526 + ... + 116372.

It is an arithmetic number, because the mean of its divisors is an integer number (18406080).

Almost surely, 2^213234303 is an apocalyptic number.

213234303 is a deficient number, since it is larger than the sum of its proper divisors (81262977).

213234303 is a wasteful number, since it uses less digits than its factorization.

213234303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 213234303 is about 14602.5444015760. The cubic root of 213234303 is about 597.4281612713.

Adding to 213234303 its reverse (303432312), we get a palindrome (516666615).

The spelling of 213234303 in words is "two hundred thirteen million, two hundred thirty-four thousand, three hundred three".