120170018 has 4 divisors (see below), whose sum is σ = 180255030. Its totient is φ = 60085008.

The previous prime is 120169979. The next prime is 120170021. The reversal of 120170018 is 810071021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 810071021 = 71 ⋅11409451.

It can be written as a sum of positive squares in only one way, i.e., 119617969 + 552049 = 10937^2 + 743^2 .

It is a super-2 number, since 2×120170018² = 28881666452240648, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30042503 + ... + 30042506.

Almost surely, 2^120170018 is an apocalyptic number.

120170018 is a deficient number, since it is larger than the sum of its proper divisors (60085012).

120170018 is an equidigital number, since it uses as much as digits as its factorization.

120170018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60085011.

The product of its (nonzero) digits is 112, while the sum is 20.

The square root of 120170018 is about 10962.2086278268. The cubic root of 120170018 is about 493.4752496307.

The spelling of 120170018 in words is "one hundred twenty million, one hundred seventy thousand, eighteen".