23123130112 has 108 divisors (see below), whose sum is σ = 49065247056. Its totient is φ = 10873958400.

The previous prime is 23123130097. The next prime is 23123130137. The reversal of 23123130112 is 21103132132.

It is a super-2 number, since 2×23123130112² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 23123130112.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 13953988 + ... + 13955644.

Almost surely, 2^23123130112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23123130112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24532623528).

23123130112 is an abundant number, since it is smaller than the sum of its proper divisors (25942116944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23123130112 is a wasteful number, since it uses less digits than its factorization.

23123130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1862 (or 1829 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23123130112 its reverse (21103132132), we get a palindrome (44226262244).

The spelling of 23123130112 in words is "twenty-three billion, one hundred twenty-three million, one hundred thirty thousand, one hundred twelve".