120205387044 has 120 divisors (see below), whose sum is σ = 318185239680. Its totient is φ = 39567973824.

The previous prime is 120205387021. The next prime is 120205387073. The reversal of 120205387044 is 440783502021.

It is a happy number.

120205387044 is a `hidden beast` number, since 12 + 0 + 2 + 0 + 538 + 70 + 44 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10836469 + ... + 10847555.

It is an arithmetic number, because the mean of its divisors is an integer number (2651543664).

Almost surely, 2^120205387044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120205387044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159092619840).

120205387044 is an abundant number, since it is smaller than the sum of its proper divisors (197979852636).

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

120205387044 is a wasteful number, since it uses less digits than its factorization.

120205387044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519 (or 11508 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

Adding to 120205387044 its reverse (440783502021), we get a palindrome (560988889065).

The spelling of 120205387044 in words is "one hundred twenty billion, two hundred five million, three hundred eighty-seven thousand, forty-four".