120331903 has 2 divisors, whose sum is σ = 120331904. Its totient is φ = 120331902.

The previous prime is 120331901. The next prime is 120331909. The reversal of 120331903 is 309133021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120331903 - 2¹ = 120331901 is a prime.

Together with 120331901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120331901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60165951 + 60165952.

It is an arithmetic number, because the mean of its divisors is an integer number (60165952).

Almost surely, 2^120331903 is an apocalyptic number.

120331903 is a deficient number, since it is larger than the sum of its proper divisors (1).

120331903 is an equidigital number, since it uses as much as digits as its factorization.

120331903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 120331903 is about 10969.5899194090. The cubic root of 120331903 is about 493.6967424691.

Adding to 120331903 its reverse (309133021), we get a palindrome (429464924).

The spelling of 120331903 in words is "one hundred twenty million, three hundred thirty-one thousand, nine hundred three".