123430401 has 12 divisors (see below), whose sum is σ = 179925460. Its totient is φ = 81531360.

The previous prime is 123430399. The next prime is 123430423. The reversal of 123430401 is 104034321.

123430401 is a `hidden beast` number, since 1 + 234 + 30 + 401 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 62964225 + 60466176 = 7935^2 + 7776^2 .

It is not a de Polignac number, because 123430401 - 2¹ = 123430399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123430001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61930 + ... + 63891.

Almost surely, 2^123430401 is an apocalyptic number.

It is an amenable number.

123430401 is a deficient number, since it is larger than the sum of its proper divisors (56495059).

123430401 is a wasteful number, since it uses less digits than its factorization.

123430401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125936 (or 125933 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 123430401 is about 11109.9235370906. The cubic root of 123430401 is about 497.8983800975.

Adding to 123430401 its reverse (104034321), we get a palindrome (227464722).

The spelling of 123430401 in words is "one hundred twenty-three million, four hundred thirty thousand, four hundred one".