120456711081 has 48 divisors (see below), whose sum is σ = 209357216640. Its totient is φ = 65196472320.

The previous prime is 120456711047. The next prime is 120456711143. The reversal of 120456711081 is 180117654021.

120456711081 is a `hidden beast` number, since 1 + 2 + 0 + 4 + 567 + 1 + 10 + 81 = 666.

It is not a de Polignac number, because 120456711081 - 2¹⁵ = 120456678313 is a prime.

It is a super-3 number, since 3×120456711081³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120456711031) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 10184151 + ... + 10195971.

It is an arithmetic number, because the mean of its divisors is an integer number (4361608680).

Almost surely, 2^120456711081 is an apocalyptic number.

It is an amenable number.

120456711081 is a deficient number, since it is larger than the sum of its proper divisors (88900505559).

120456711081 is a wasteful number, since it uses less digits than its factorization.

120456711081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20366 (or 20363 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The spelling of 120456711081 in words is "one hundred twenty billion, four hundred fifty-six million, seven hundred eleven thousand, eighty-one".