123322405 has 16 divisors (see below), whose sum is σ = 151245360. Its totient is φ = 96509952.

The previous prime is 123322387. The next prime is 123322417. The reversal of 123322405 is 504223321.

It can be written as a sum of positive squares in 8 ways, for example, as 3682561 + 119639844 = 1919^2 + 10938^2 .

It is a cyclic number.

It is not a de Polignac number, because 123322405 - 2⁵ = 123322373 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41737 + ... + 44593.

It is an arithmetic number, because the mean of its divisors is an integer number (9452835).

Almost surely, 2^123322405 is an apocalyptic number.

It is an amenable number.

123322405 is a deficient number, since it is larger than the sum of its proper divisors (27922955).

123322405 is an equidigital number, since it uses as much as digits as its factorization.

123322405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3048.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 123322405 is about 11105.0621340000. The cubic root of 123322405 is about 497.7531248955.

Adding to 123322405 its reverse (504223321), we get a palindrome (627545726).

The spelling of 123322405 in words is "one hundred twenty-three million, three hundred twenty-two thousand, four hundred five".