23113112221 has 8 divisors (see below), whose sum is σ = 23605434720. Its totient is φ = 22622872272.

The previous prime is 23113112207. The next prime is 23113112257. The reversal of 23113112221 is 12221131132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23113112221 - 2¹⁷ = 23112981149 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 (23113112521) 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 7 ways as a sum of consecutive naturals, for example, 498195 + ... + 542608.

It is an arithmetic number, because the mean of its divisors is an integer number (2950679340).

Almost surely, 2^23113112221 is an apocalyptic number.

It is an amenable number.

23113112221 is a deficient number, since it is larger than the sum of its proper divisors (492322499).

23113112221 is a wasteful number, since it uses less digits than its factorization.

23113112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041275.

The product of its digits is 144, while the sum is 19.

Adding to 23113112221 its reverse (12221131132), we get a palindrome (35334243353).

The spelling of 23113112221 in words is "twenty-three billion, one hundred thirteen million, one hundred twelve thousand, two hundred twenty-one".