122530403 has 4 divisors (see below), whose sum is σ = 122552640. Its totient is φ = 122508168.

The previous prime is 122530393. The next prime is 122530417. The reversal of 122530403 is 304035221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 304035221 = 7 ⋅43433603.

It is a cyclic number.

It is not a de Polignac number, because 122530403 - 2¹⁸ = 122268259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122530003) 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, 4001 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (30638160).

Almost surely, 2^122530403 is an apocalyptic number.

122530403 is a deficient number, since it is larger than the sum of its proper divisors (22237).

122530403 is a wasteful number, since it uses less digits than its factorization.

122530403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22236.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 122530403 is about 11069.3451929190. The cubic root of 122530403 is about 496.6852777936.

Adding to 122530403 its reverse (304035221), we get a palindrome (426565624).

The spelling of 122530403 in words is "one hundred twenty-two million, five hundred thirty thousand, four hundred three".