23130211 has 4 divisors (see below), whose sum is σ = 24909472. Its totient is φ = 21350952.

The previous prime is 23130193. The next prime is 23130253. The reversal of 23130211 is 11203132.

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 23130211 - 2⁵ = 23130179 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1779247 = 23130211 / (2 + 3 + 1 + 3 + 0 + 2 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23130191 and 23130200.

It is not an unprimeable number, because it can be changed into a prime (23131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 889611 + ... + 889636.

It is an arithmetic number, because the mean of its divisors is an integer number (6227368).

Almost surely, 2^23130211 is an apocalyptic number.

23130211 is a deficient number, since it is larger than the sum of its proper divisors (1779261).

23130211 is a wasteful number, since it uses less digits than its factorization.

23130211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779260.

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

The square root of 23130211 is about 4809.3877988784. The cubic root of 23130211 is about 284.9223590702.

Adding to 23130211 its reverse (11203132), we get a palindrome (34333343).

The spelling of 23130211 in words is "twenty-three million, one hundred thirty thousand, two hundred eleven".