120331009 has 8 divisors (see below), whose sum is σ = 132171840. Its totient is φ = 109040976.

The previous prime is 120330997. The next prime is 120331039. The reversal of 120331009 is 900133021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120331009 - 2¹¹ = 120328961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120331039) 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 in 7 ways as a sum of consecutive naturals, for example, 137242 + ... + 138115.

It is an arithmetic number, because the mean of its divisors is an integer number (16521480).

Almost surely, 2^120331009 is an apocalyptic number.

120331009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

120331009 is a deficient number, since it is larger than the sum of its proper divisors (11840831).

120331009 is a wasteful number, since it uses less digits than its factorization.

120331009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275399.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 120331009 is about 10969.5491703169. The cubic root of 120331009 is about 493.6955198341.

The spelling of 120331009 in words is "one hundred twenty million, three hundred thirty-one thousand, nine".