122723 has 4 divisors (see below), whose sum is σ = 129960. Its totient is φ = 115488.

The previous prime is 122719. The next prime is 122741. The reversal of 122723 is 327221.

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 122723 - 2² = 122719 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7219 = 122723 / (1 + 2 + 2 + 7 + 2 + 3).

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122743) 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, 3593 + ... + 3626.

It is an arithmetic number, because the mean of its divisors is an integer number (32490).

2¹²²⁷²³ is an apocalyptic number.

122723 is a deficient number, since it is larger than the sum of its proper divisors (7237).

122723 is an equidigital number, since it uses as much as digits as its factorization.

122723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7236.

The product of its digits is 168, while the sum is 17.

The square root of 122723 is about 350.3184265779. The cubic root of 122723 is about 49.6945376554.

Adding to 122723 its reverse (327221), we get a palindrome (449944).

The spelling of 122723 in words is "one hundred twenty-two thousand, seven hundred twenty-three", and thus it is an iban number.