123043430 has 32 divisors (see below), whose sum is σ = 233992800. Its totient is φ = 46455552.

The previous prime is 123043409. The next prime is 123043457. The reversal of 123043430 is 34340321.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 58436 + ... + 60504.

It is an arithmetic number, because the mean of its divisors is an integer number (7312275).

Almost surely, 2^123043430 is an apocalyptic number.

123043430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123043430 is a deficient number, since it is larger than the sum of its proper divisors (110949370).

123043430 is a wasteful number, since it uses less digits than its factorization.

123043430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 123043430 is about 11092.4943092165. The cubic root of 123043430 is about 497.3775091314.

Adding to 123043430 its reverse (34340321), we get a palindrome (157383751).

The spelling of 123043430 in words is "one hundred twenty-three million, forty-three thousand, four hundred thirty".