123422430 has 32 divisors (see below), whose sum is σ = 297501984. Its totient is φ = 32769536.

The previous prime is 123422419. The next prime is 123422437. The reversal of 123422430 is 34224321.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123422397 and 123422406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123422437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1839 + ... + 15818.

It is an arithmetic number, because the mean of its divisors is an integer number (9296937).

Almost surely, 2^123422430 is an apocalyptic number.

123422430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123422430 is an abundant number, since it is smaller than the sum of its proper divisors (174079554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123422430 is a wasteful number, since it uses less digits than its factorization.

123422430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17900.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 123422430 is about 11109.5647979568. The cubic root of 123422430 is about 497.8876619562.

Adding to 123422430 its reverse (34224321), we get a palindrome (157646751).

The spelling of 123422430 in words is "one hundred twenty-three million, four hundred twenty-two thousand, four hundred thirty".