120113865 has 24 divisors (see below), whose sum is σ = 210712320. Its totient is φ = 63286944.

The previous prime is 120113837. The next prime is 120113867. The reversal of 120113865 is 568311021.

It is not a de Polignac number, because 120113865 - 2¹³ = 120105673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120113867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12345 + ... + 19814.

It is an arithmetic number, because the mean of its divisors is an integer number (8779680).

Almost surely, 2^120113865 is an apocalyptic number.

120113865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120113865 is a deficient number, since it is larger than the sum of its proper divisors (90598455).

120113865 is a wasteful number, since it uses less digits than its factorization.

120113865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32253 (or 32250 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 120113865 is about 10959.6471202316. The cubic root of 120113865 is about 493.3983740134.

Adding to 120113865 its reverse (568311021), we get a palindrome (688424886).

It can be divided in two parts, 12011 and 3865, that added together give a square (15876 = 126²).

The spelling of 120113865 in words is "one hundred twenty million, one hundred thirteen thousand, eight hundred sixty-five".