213230011 has 4 divisors (see below), whose sum is σ = 220582800. Its totient is φ = 205877224.

The previous prime is 213230009. The next prime is 213230041. The reversal of 213230011 is 110032312.

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 213230011 - 2¹ = 213230009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213229973 and 213230000.

It is not an unprimeable number, because it can be changed into a prime (213230041) 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, 3676351 + ... + 3676408.

It is an arithmetic number, because the mean of its divisors is an integer number (55145700).

Almost surely, 2^213230011 is an apocalyptic number.

213230011 is a deficient number, since it is larger than the sum of its proper divisors (7352789).

213230011 is an equidigital number, since it uses as much as digits as its factorization.

213230011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352788.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213230011 is about 14602.3974401466. The cubic root of 213230011 is about 597.4241528811.

Adding to 213230011 its reverse (110032312), we get a palindrome (323262323).

The spelling of 213230011 in words is "two hundred thirteen million, two hundred thirty thousand, eleven".