120013123 has 4 divisors (see below), whose sum is σ = 120335248. Its totient is φ = 119691000.

The previous prime is 120013111. The next prime is 120013141. The reversal of 120013123 is 321310021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120013123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120013193) 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, 160503 + ... + 161248.

It is an arithmetic number, because the mean of its divisors is an integer number (30083812).

Almost surely, 2^120013123 is an apocalyptic number.

120013123 is a deficient number, since it is larger than the sum of its proper divisors (322125).

120013123 is an equidigital number, since it uses as much as digits as its factorization.

120013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322124.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 120013123 is about 10955.0501139885. The cubic root of 120013123 is about 493.2603942669.

Adding to 120013123 its reverse (321310021), we get a palindrome (441323144).

The spelling of 120013123 in words is "one hundred twenty million, thirteen thousand, one hundred twenty-three".