120111123 has 32 divisors (see below), whose sum is σ = 178375680. Its totient is φ = 71285760.

The previous prime is 120111073. The next prime is 120111163. The reversal of 120111123 is 321111021.

It is not a de Polignac number, because 120111123 - 2¹⁷ = 119980051 is a prime.

It is a super-2 number, since 2×120111123² = 28853363736642258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120111099 and 120111108.

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 31 ways as a sum of consecutive naturals, for example, 502438 + ... + 502676.

It is an arithmetic number, because the mean of its divisors is an integer number (5574240).

Almost surely, 2^120111123 is an apocalyptic number.

120111123 is a deficient number, since it is larger than the sum of its proper divisors (58264557).

120111123 is a wasteful number, since it uses less digits than its factorization.

120111123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 120111123 is about 10959.5220242491. The cubic root of 120111123 is about 493.3946194964.

Adding to 120111123 its reverse (321111021), we get a palindrome (441222144).

The spelling of 120111123 in words is "one hundred twenty million, one hundred eleven thousand, one hundred twenty-three".