12321150140 has 96 divisors (see below), whose sum is σ = 29148166656. Its totient is φ = 4340793600.

The previous prime is 12321150097. The next prime is 12321150169. The reversal of 12321150140 is 4105112321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2646815 + ... + 2651465.

It is an arithmetic number, because the mean of its divisors is an integer number (303626736).

Almost surely, 2^12321150140 is an apocalyptic number.

12321150140 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 12321150140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14574083328).

12321150140 is an abundant number, since it is smaller than the sum of its proper divisors (16827016516).

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

12321150140 is a wasteful number, since it uses less digits than its factorization.

12321150140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5139 (or 5137 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12321150140 its reverse (4105112321), we get a palindrome (16426262461).

The spelling of 12321150140 in words is "twelve billion, three hundred twenty-one million, one hundred fifty thousand, one hundred forty".