120771115 has 4 divisors (see below), whose sum is σ = 144925344. Its totient is φ = 96616888.

The previous prime is 120771113. The next prime is 120771139. The reversal of 120771115 is 511177021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511177021 = 1013 ⋅504617.

It is a cyclic number.

It is not a de Polignac number, because 120771115 - 2¹ = 120771113 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120771115.

It is not an unprimeable number, because it can be changed into a prime (120771113) 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, 12077107 + ... + 12077116.

It is an arithmetic number, because the mean of its divisors is an integer number (36231336).

Almost surely, 2^120771115 is an apocalyptic number.

120771115 is a deficient number, since it is larger than the sum of its proper divisors (24154229).

120771115 is an equidigital number, since it uses as much as digits as its factorization.

120771115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24154228.

The product of its (nonzero) digits is 490, while the sum is 25.

The square root of 120771115 is about 10989.5912116875. The cubic root of 120771115 is about 494.2966782650.

The spelling of 120771115 in words is "one hundred twenty million, seven hundred seventy-one thousand, one hundred fifteen".