120378243 has 16 divisors (see below), whose sum is σ = 169769600. Its totient is φ = 75660480.

The previous prime is 120378227. The next prime is 120378277. The reversal of 120378243 is 342873021.

It is not a de Polignac number, because 120378243 - 2⁴ = 120378227 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 120378243.

It is not an unprimeable number, because it can be changed into a prime (120378743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7023 + ... + 17031.

It is an arithmetic number, because the mean of its divisors is an integer number (10610600).

Almost surely, 2^120378243 is an apocalyptic number.

120378243 is a deficient number, since it is larger than the sum of its proper divisors (49391357).

120378243 is a wasteful number, since it uses less digits than its factorization.

120378243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10242.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 120378243 is about 10971.7019190279. The cubic root of 120378243 is about 493.7601087927.

The spelling of 120378243 in words is "one hundred twenty million, three hundred seventy-eight thousand, two hundred forty-three".