13022123112 has 192 divisors, whose sum is σ = 38226988800. Its totient is φ = 4147718400.

The previous prime is 13022123111. The next prime is 13022123117. The reversal of 13022123112 is 21132122031.

13022123112 is a `hidden beast` number, since 130 + 221 + 2 + 311 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (13022123111) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5692833 + ... + 5695119.

It is an arithmetic number, because the mean of its divisors is an integer number (199098900).

Almost surely, 2^13022123112 is an apocalyptic number.

13022123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13022123112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19113494400).

13022123112 is an abundant number, since it is smaller than the sum of its proper divisors (25204865688).

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

13022123112 is a wasteful number, since it uses less digits than its factorization.

13022123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2438 (or 2422 counting only the distinct ones).

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

Adding to 13022123112 its reverse (21132122031), we get a palindrome (34154245143).

The spelling of 13022123112 in words is "thirteen billion, twenty-two million, one hundred twenty-three thousand, one hundred twelve".