120111131 has 8 divisors (see below), whose sum is σ = 137339904. Its totient is φ = 102899880.

The previous prime is 120111073. The next prime is 120111163. The reversal of 120111131 is 131111021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 120111131 - 2⁶ = 120111067 is a prime.

It is a super-2 number, since 2×120111131² = 28853367580198322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111191) 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, 17846 + ... + 23636.

It is an arithmetic number, because the mean of its divisors is an integer number (17167488).

Almost surely, 2^120111131 is an apocalyptic number.

120111131 is a deficient number, since it is larger than the sum of its proper divisors (17228773).

120111131 is an equidigital number, since it uses as much as digits as its factorization.

120111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8761.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 120111131 is about 10959.5223892285. The cubic root of 120111131 is about 493.3946304506.

Adding to 120111131 its reverse (131111021), we get a palindrome (251222152).

The spelling of 120111131 in words is "one hundred twenty million, one hundred eleven thousand, one hundred thirty-one".