120653020506 has 32 divisors (see below), whose sum is σ = 254523801600. Its totient is φ = 38023337520.

The previous prime is 120653020469. The next prime is 120653020513. The reversal of 120653020506 is 605020356021.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021786 + ... + 1133733.

It is an arithmetic number, because the mean of its divisors is an integer number (7953868800).

Almost surely, 2^120653020506 is an apocalyptic number.

120653020506 is an abundant number, since it is smaller than the sum of its proper divisors (133870781094).

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

120653020506 is a wasteful number, since it uses less digits than its factorization.

120653020506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156034.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 120653020506 its reverse (605020356021), we get a palindrome (725673376527).

The spelling of 120653020506 in words is "one hundred twenty billion, six hundred fifty-three million, twenty thousand, five hundred six".