23130221112 has 128 divisors (see below), whose sum is σ = 65264270400. Its totient is φ = 7588878336.

The previous prime is 23130221089. The next prime is 23130221113. The reversal of 23130221112 is 21112203132.

23130221112 is a `hidden beast` number, since 231 + 302 + 21 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130221113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9664588 + ... + 9666980.

Almost surely, 2^23130221112 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 23130221112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32632135200).

23130221112 is an abundant number, since it is smaller than the sum of its proper divisors (42134049288).

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

23130221112 is a wasteful number, since it uses less digits than its factorization.

23130221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094 (or 3084 counting only the distinct ones).

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

Adding to 23130221112 its reverse (21112203132), we get a palindrome (44242424244).

The spelling of 23130221112 in words is "twenty-three billion, one hundred thirty million, two hundred twenty-one thousand, one hundred twelve".