12142345320 has 192 divisors, whose sum is σ = 45141333120. Its totient is φ = 2772859392.

The previous prime is 12142345297. The next prime is 12142345337. The reversal of 12142345320 is 2354324121.

12142345320 is a `hidden beast` number, since 121 + 4 + 2 + 3 + 4 + 532 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5172387 + ... + 5174733.

It is an arithmetic number, because the mean of its divisors is an integer number (235111110).

Almost surely, 2^12142345320 is an apocalyptic number.

12142345320 is a gapful number since it is divisible by the number (10) 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 12142345320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22570666560).

12142345320 is an abundant number, since it is smaller than the sum of its proper divisors (32998987800).

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

12142345320 is a wasteful number, since it uses less digits than its factorization.

12142345320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4424 (or 4417 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 12142345320 its reverse (2354324121), we get a palindrome (14496669441).

The spelling of 12142345320 in words is "twelve billion, one hundred forty-two million, three hundred forty-five thousand, three hundred twenty".