120252657105 has 40 divisors (see below), whose sum is σ = 246358888512. Its totient is φ = 54972641952.

The previous prime is 120252657089. The next prime is 120252657113. The reversal of 120252657105 is 501756252021.

120252657105 is a `hidden beast` number, since 1 + 20 + 2 + 526 + 5 + 7 + 105 = 666.

It is not a de Polignac number, because 120252657105 - 2⁴ = 120252657089 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120252657105.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21205747 + ... + 21211416.

Almost surely, 2^120252657105 is an apocalyptic number.

120252657105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120252657105 is an abundant number, since it is smaller than the sum of its proper divisors (126106231407).

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

120252657105 is an equidigital number, since it uses as much as digits as its factorization.

120252657105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42417187 (or 42417178 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The spelling of 120252657105 in words is "one hundred twenty billion, two hundred fifty-two million, six hundred fifty-seven thousand, one hundred five".