120111113 has 4 divisors (see below), whose sum is σ = 120133140. Its totient is φ = 120089088.

The previous prime is 120111073. The next prime is 120111163. The reversal of 120111113 is 311111021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311111021 = 13 ⋅23931617.

It can be written as a sum of positive squares in 2 ways, for example, as 11888704 + 108222409 = 3448^2 + 10403^2 .

It is a cyclic number.

It is not a de Polignac number, because 120111113 - 2⁶ = 120111049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120111094 and 120111103.

It is not an unprimeable number, because it can be changed into a prime (120111163) 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, 3881 + ... + 15977.

It is an arithmetic number, because the mean of its divisors is an integer number (30033285).

Almost surely, 2^120111113 is an apocalyptic number.

It is an amenable number.

120111113 is a deficient number, since it is larger than the sum of its proper divisors (22027).

120111113 is an equidigital number, since it uses as much as digits as its factorization.

120111113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22026.

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

The square root of 120111113 is about 10959.5215680248. The cubic root of 120111113 is about 493.3946058037.

Adding to 120111113 its reverse (311111021), we get a palindrome (431222134).

The spelling of 120111113 in words is "one hundred twenty million, one hundred eleven thousand, one hundred thirteen".