120177728147 has 4 divisors (see below), whose sum is σ = 121416673896. Its totient is φ = 118938782400.

The previous prime is 120177728137. The next prime is 120177728161. The reversal of 120177728147 is 741827771021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120177728147 - 2⁴ = 120177728131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120177728107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 619472729 + ... + 619472922.

It is an arithmetic number, because the mean of its divisors is an integer number (30354168474).

Almost surely, 2^120177728147 is an apocalyptic number.

120177728147 is a deficient number, since it is larger than the sum of its proper divisors (1238945749).

120177728147 is an equidigital number, since it uses as much as digits as its factorization.

120177728147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238945748.

The product of its (nonzero) digits is 307328, while the sum is 47.

The spelling of 120177728147 in words is "one hundred twenty billion, one hundred seventy-seven million, seven hundred twenty-eight thousand, one hundred forty-seven".