120311123 has 4 divisors (see below), whose sum is σ = 120426648. Its totient is φ = 120195600.

The previous prime is 120311101. The next prime is 120311129. The reversal of 120311123 is 321113021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120311123 - 2⁸ = 120310867 is a prime.

It is a super-2 number, since 2×120311123² = 28949532635042258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120311098 and 120311107.

It is not an unprimeable number, because it can be changed into a prime (120311129) 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, 56186 + ... + 58287.

It is an arithmetic number, because the mean of its divisors is an integer number (30106662).

Almost surely, 2^120311123 is an apocalyptic number.

120311123 is a deficient number, since it is larger than the sum of its proper divisors (115525).

120311123 is a wasteful number, since it uses less digits than its factorization.

120311123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115524.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 120311123 is about 10968.6427145750. The cubic root of 120311123 is about 493.6683221620.

Adding to 120311123 its reverse (321113021), we get a palindrome (441424144).

The spelling of 120311123 in words is "one hundred twenty million, three hundred eleven thousand, one hundred twenty-three".