23123221101 has 12 divisors (see below), whose sum is σ = 33898719712. Its totient is φ = 15185398536.

The previous prime is 23123221039. The next prime is 23123221127. The reversal of 23123221101 is 10112232132.

23123221101 is a `hidden beast` number, since 231 + 2 + 322 + 110 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-23123221101 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 (23123211101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19172881 + ... + 19174086.

Almost surely, 2^23123221101 is an apocalyptic number.

It is an amenable number.

23123221101 is a deficient number, since it is larger than the sum of its proper divisors (10775498611).

23123221101 is a wasteful number, since it uses less digits than its factorization.

23123221101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38347040 (or 38347037 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23123221101 its reverse (10112232132), we get a palindrome (33235453233).

The spelling of 23123221101 in words is "twenty-three billion, one hundred twenty-three million, two hundred twenty-one thousand, one hundred one".