122523321 has 4 divisors (see below), whose sum is σ = 163364432. Its totient is φ = 81682212.

The previous prime is 122523311. The next prime is 122523329. The reversal of 122523321 is 123325221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123325221 = 3 ⋅41108407.

It is not a de Polignac number, because 122523321 - 2¹⁸ = 122261177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122523329) 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, 20420551 + ... + 20420556.

It is an arithmetic number, because the mean of its divisors is an integer number (40841108).

Almost surely, 2^122523321 is an apocalyptic number.

It is an amenable number.

122523321 is a deficient number, since it is larger than the sum of its proper divisors (40841111).

122523321 is an equidigital number, since it uses as much as digits as its factorization.

122523321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40841110.

The product of its digits is 720, while the sum is 21.

The square root of 122523321 is about 11069.0252958424. The cubic root of 122523321 is about 496.6757084872.

Adding to 122523321 its reverse (123325221), we get a palindrome (245848542).

The spelling of 122523321 in words is "one hundred twenty-two million, five hundred twenty-three thousand, three hundred twenty-one".