12120032140240 has 40 divisors (see below), whose sum is σ = 28179230741928. Its totient is φ = 4847986014720.

The previous prime is 12120032140163. The next prime is 12120032140277. The reversal of 12120032140240 is 4204123002121.

It can be written as a sum of positive squares in 4 ways, for example, as 2416233971776 + 9703798168464 = 1554424^2 + 3115092^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20769250 + ... + 21344830.

Almost surely, 2^{12120032140240} is an apocalyptic number.

12120032140240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120032140240 is an abundant number, since it is smaller than the sum of its proper divisors (16059198601688).

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

12120032140240 is a wasteful number, since it uses less digits than its factorization.

12120032140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838807 (or 838801 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12120032140240 its reverse (4204123002121), we get a palindrome (16324155142361).

The spelling of 12120032140240 in words is "twelve trillion, one hundred twenty billion, thirty-two million, one hundred forty thousand, two hundred forty".