120031101 has 24 divisors (see below), whose sum is σ = 189506304. Its totient is φ = 72881280.

The previous prime is 120031097. The next prime is 120031111. The reversal of 120031101 is 101130021.

It is not a de Polignac number, because 120031101 - 2² = 120031097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120031111) 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 in 23 ways as a sum of consecutive naturals, for example, 7911 + ... + 17396.

It is an arithmetic number, because the mean of its divisors is an integer number (7896096).

Almost surely, 2^120031101 is an apocalyptic number.

It is an amenable number.

120031101 is a deficient number, since it is larger than the sum of its proper divisors (69475203).

120031101 is a wasteful number, since it uses less digits than its factorization.

120031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25361 (or 25358 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 120031101 is about 10955.8706180750. The cubic root of 120031101 is about 493.2850232196.

Adding to 120031101 its reverse (101130021), we get a palindrome (221161122).

The spelling of 120031101 in words is "one hundred twenty million, thirty-one thousand, one hundred one".