12303113112 has 128 divisors (see below), whose sum is σ = 36404121600. Its totient is φ = 3836496384.

The previous prime is 12303113107. The next prime is 12303113113. The reversal of 12303113112 is 21131130321.

12303113112 is a `hidden beast` number, since 12 + 30 + 311 + 311 + 2 = 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 (12303113113) 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, 603193 + ... + 623255.

It is an arithmetic number, because the mean of its divisors is an integer number (284407200).

Almost surely, 2^12303113112 is an apocalyptic number.

12303113112 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 12303113112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18202060800).

12303113112 is an abundant number, since it is smaller than the sum of its proper divisors (24101008488).

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

12303113112 is a wasteful number, since it uses less digits than its factorization.

12303113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20262 (or 20252 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 12303113112 its reverse (21131130321), we get a palindrome (33434243433).

The spelling of 12303113112 in words is "twelve billion, three hundred three million, one hundred thirteen thousand, one hundred twelve".