122503421 has 4 divisors (see below), whose sum is σ = 122564700. Its totient is φ = 122442144.

The previous prime is 122503397. The next prime is 122503429. The reversal of 122503421 is 124305221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42758521 + 79744900 = 6539^2 + 8930^2 .

It is a cyclic number.

It is not a de Polignac number, because 122503421 - 2¹⁰ = 122502397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122503393 and 122503402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122503429) 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, 27536 + ... + 31673.

It is an arithmetic number, because the mean of its divisors is an integer number (30641175).

Almost surely, 2^122503421 is an apocalyptic number.

It is an amenable number.

122503421 is a deficient number, since it is larger than the sum of its proper divisors (61279).

122503421 is an equidigital number, since it uses as much as digits as its factorization.

122503421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61278.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 122503421 is about 11068.1263545372. The cubic root of 122503421 is about 496.6488173297.

Adding to 122503421 its reverse (124305221), we get a palindrome (246808642).

The spelling of 122503421 in words is "one hundred twenty-two million, five hundred three thousand, four hundred twenty-one".