120331001 has 12 divisors (see below), whose sum is σ = 138583872. Its totient is φ = 102349656.

The previous prime is 120330997. The next prime is 120331039. The reversal of 120331001 is 100133021.

It is not a de Polignac number, because 120331001 - 2² = 120330997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120331091) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185660 + ... + 186306.

It is an arithmetic number, because the mean of its divisors is an integer number (11548656).

Almost surely, 2^120331001 is an apocalyptic number.

It is an amenable number.

120331001 is a deficient number, since it is larger than the sum of its proper divisors (18252871).

120331001 is an frugal number, since it uses more digits than its factorization.

120331001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980 (or 817 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 120331001 is about 10969.5488056711. The cubic root of 120331001 is about 493.6955088933.

Adding to 120331001 its reverse (100133021), we get a palindrome (220464022).

The spelling of 120331001 in words is "one hundred twenty million, three hundred thirty-one thousand, one".