120331387 has 4 divisors (see below), whose sum is σ = 131270616. Its totient is φ = 109392160.

The previous prime is 120331381. The next prime is 120331403. The reversal of 120331387 is 783133021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120331387 - 2⁷ = 120331259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120331381) 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, 5469598 + ... + 5469619.

It is an arithmetic number, because the mean of its divisors is an integer number (32817654).

Almost surely, 2^120331387 is an apocalyptic number.

120331387 is a deficient number, since it is larger than the sum of its proper divisors (10939229).

120331387 is a wasteful number, since it uses less digits than its factorization.

120331387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10939228.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 120331387 is about 10969.5663998173. The cubic root of 120331387 is about 493.6960367879.

The spelling of 120331387 in words is "one hundred twenty million, three hundred thirty-one thousand, three hundred eighty-seven".