12354320112 has 40 divisors (see below), whose sum is σ = 32028939600. Its totient is φ = 4103447040.

The previous prime is 12354320093. The next prime is 12354320117. The reversal of 12354320112 is 21102345321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12354320117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 444487 + ... + 471462.

It is an arithmetic number, because the mean of its divisors is an integer number (800723490).

Almost surely, 2^12354320112 is an apocalyptic number.

12354320112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12354320112 is an abundant number, since it is smaller than the sum of its proper divisors (19674619488).

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

12354320112 is a wasteful number, since it uses less digits than its factorization.

12354320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916241 (or 916235 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12354320112 its reverse (21102345321), we get a palindrome (33456665433).

The spelling of 12354320112 in words is "twelve billion, three hundred fifty-four million, three hundred twenty thousand, one hundred twelve".