122403 has 4 divisors (see below), whose sum is σ = 163208. Its totient is φ = 81600.

The previous prime is 122401. The next prime is 122443. The reversal of 122403 is 304221.

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

It is not a de Polignac number, because 122403 - 2¹ = 122401 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122401) 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, 20398 + ... + 20403.

It is an arithmetic number, because the mean of its divisors is an integer number (40802).

2¹²²⁴⁰³ is an apocalyptic number.

122403 is a deficient number, since it is larger than the sum of its proper divisors (40805).

122403 is an equidigital number, since it uses as much as digits as its factorization.

122403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40804.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 122403 is about 349.8614011291. The cubic root of 122403 is about 49.6513072536.

Adding to 122403 its reverse (304221), we get a palindrome (426624).

It can be divided in two parts, 122 and 403, that added together give a palindrome (525).

The spelling of 122403 in words is "one hundred twenty-two thousand, four hundred three", and thus it is an iban number.