23101011123 has 4 divisors (see below), whose sum is σ = 30801348168. Its totient is φ = 15400674080.

The previous prime is 23101011121. The next prime is 23101011127. The reversal of 23101011123 is 32111010132.

It is a happy number.

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 23101011123 - 2¹ = 23101011121 is a prime.

It is a super-2 number, since 2×23101011123² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23101011121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850168518 + ... + 3850168523.

It is an arithmetic number, because the mean of its divisors is an integer number (7700337042).

Almost surely, 2^23101011123 is an apocalyptic number.

23101011123 is a deficient number, since it is larger than the sum of its proper divisors (7700337045).

23101011123 is an equidigital number, since it uses as much as digits as its factorization.

23101011123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7700337044.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 23101011123 its reverse (32111010132), we get a palindrome (55212021255).

Subtracting 23101011123 from its reverse (32111010132), we obtain a palindrome (9009999009).

The spelling of 23101011123 in words is "twenty-three billion, one hundred one million, eleven thousand, one hundred twenty-three".