213233101 has 4 divisors (see below), whose sum is σ = 213423100. Its totient is φ = 213043104.

The previous prime is 213233099. The next prime is 213233113. The reversal of 213233101 is 101332312.

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 107122500 + 106110601 = 10350^2 + 10301^2 .

It is a cyclic number.

It is not a de Polignac number, because 213233101 - 2¹ = 213233099 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 (213239101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93306 + ... + 95563.

It is an arithmetic number, because the mean of its divisors is an integer number (53355775).

Almost surely, 2^213233101 is an apocalyptic number.

It is an amenable number.

213233101 is a deficient number, since it is larger than the sum of its proper divisors (189999).

213233101 is a wasteful number, since it uses less digits than its factorization.

213233101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189998.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 213233101 is about 14602.5032443071. The cubic root of 213233101 is about 597.4270387034.

Adding to 213233101 its reverse (101332312), we get a palindrome (314565413).

The spelling of 213233101 in words is "two hundred thirteen million, two hundred thirty-three thousand, one hundred one".