120723 has 4 divisors (see below), whose sum is σ = 160968. Its totient is φ = 80480.

The previous prime is 120721. The next prime is 120737. The reversal of 120723 is 327021.

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 120723 - 2¹ = 120721 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (120721) 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 3 ways as a sum of consecutive naturals, for example, 20118 + ... + 20123.

It is an arithmetic number, because the mean of its divisors is an integer number (40242).

2¹²⁰⁷²³ is an apocalyptic number.

120723 is a deficient number, since it is larger than the sum of its proper divisors (40245).

120723 is an equidigital number, since it uses as much as digits as its factorization.

120723 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40244.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 120723 is about 347.4521549796. The cubic root of 120723 is about 49.4231027236.

Adding to 120723 its reverse (327021), we get a palindrome (447744).

The spelling of 120723 in words is "one hundred twenty thousand, seven hundred twenty-three", and thus it is an iban number.