120002003440 has 40 divisors (see below), whose sum is σ = 304368720048. Its totient is φ = 43637091840.

The previous prime is 120002003417. The next prime is 120002003507. The reversal of 120002003440 is 44300200021.

120002003440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×120002003440² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 68182077 + ... + 68183836.

Almost surely, 2^120002003440 is an apocalyptic number.

120002003440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120002003440 is an abundant number, since it is smaller than the sum of its proper divisors (184366716608).

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

120002003440 is a wasteful number, since it uses less digits than its factorization.

120002003440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136365937 (or 136365931 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 120002003440 its reverse (44300200021), we get a palindrome (164302203461).

The spelling of 120002003440 in words is "one hundred twenty billion, two million, three thousand, four hundred forty".