120844440844 has 6 divisors (see below), whose sum is σ = 211477771484. Its totient is φ = 60422220420.

The previous prime is 120844440841. The next prime is 120844440859. The reversal of 120844440844 is 448044448021.

It is a self number, because there is not a number n which added to its sum of digits gives 120844440844.

It is not an unprimeable number, because it can be changed into a prime (120844440841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105555102 + ... + 15105555109.

Almost surely, 2^120844440844 is an apocalyptic number.

It is an amenable number.

120844440844 is a deficient number, since it is larger than the sum of its proper divisors (90633330640).

120844440844 is a wasteful number, since it uses less digits than its factorization.

120844440844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30211110215 (or 30211110213 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 43.

Adding to 120844440844 its reverse (448044448021), we get a palindrome (568888888865).

The spelling of 120844440844 in words is "one hundred twenty billion, eight hundred forty-four million, four hundred forty thousand, eight hundred forty-four".