120181312 has 14 divisors (see below), whose sum is σ = 238484918. Its totient is φ = 60090624.

The previous prime is 120181309. The next prime is 120181319. The reversal of 120181312 is 213181021.

It can be written as a sum of positive squares in only one way, i.e., 90326016 + 29855296 = 9504^2 + 5464^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 120181312.

It is not an unprimeable number, because it can be changed into a prime (120181319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 938853 + ... + 938980.

It is an arithmetic number, because the mean of its divisors is an integer number (17034637).

Almost surely, 2^120181312 is an apocalyptic number.

It is an amenable number.

120181312 is a deficient number, since it is larger than the sum of its proper divisors (118303606).

120181312 is an equidigital number, since it uses as much as digits as its factorization.

120181312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877845 (or 1877835 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 120181312 is about 10962.7237491419. The cubic root of 120181312 is about 493.4907086583.

The spelling of 120181312 in words is "one hundred twenty million, one hundred eighty-one thousand, three hundred twelve".