12320120140 has 96 divisors (see below), whose sum is σ = 26929244160. Its totient is φ = 4730793984.

The previous prime is 12320120129. The next prime is 12320120159. The reversal of 12320120140 is 4102102321.

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, 31671066 + ... + 31671454.

It is an arithmetic number, because the mean of its divisors is an integer number (280512960).

Almost surely, 2^12320120140 is an apocalyptic number.

12320120140 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 12320120140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13464622080).

12320120140 is an abundant number, since it is smaller than the sum of its proper divisors (14609124020).

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

12320120140 is a wasteful number, since it uses less digits than its factorization.

12320120140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12320120140 its reverse (4102102321), we get a palindrome (16422222461).

It can be divided in two parts, 123201 and 20140, that added together give a palindrome (143341).

The spelling of 12320120140 in words is "twelve billion, three hundred twenty million, one hundred twenty thousand, one hundred forty".