23110130221 has 4 divisors (see below), whose sum is σ = 23193560572. Its totient is φ = 23026699872.

The previous prime is 23110130203. The next prime is 23110130237. The reversal of 23110130221 is 12203101132.

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 1680098121 + 21430032100 = 40989^2 + 146390^2 .

It is a cyclic number.

It is not a de Polignac number, because 23110130221 - 2⁹ = 23110129709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23110130195 and 23110130204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23110130261) 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, 41714760 + ... + 41715313.

It is an arithmetic number, because the mean of its divisors is an integer number (5798390143).

Almost surely, 2^23110130221 is an apocalyptic number.

It is an amenable number.

23110130221 is a deficient number, since it is larger than the sum of its proper divisors (83430351).

23110130221 is an equidigital number, since it uses as much as digits as its factorization.

23110130221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83430350.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23110130221 its reverse (12203101132), we get a palindrome (35313231353).

The spelling of 23110130221 in words is "twenty-three billion, one hundred ten million, one hundred thirty thousand, two hundred twenty-one".