123112434 has 8 divisors (see below), whose sum is σ = 246224880. Its totient is φ = 41037476.

The previous prime is 123112427. The next prime is 123112459. The reversal of 123112434 is 434211321.

It is a sphenic number, since it is the product of 3 distinct primes.

123112434 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 123112434.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10259364 + ... + 10259375.

It is an arithmetic number, because the mean of its divisors is an integer number (30778110).

Almost surely, 2^123112434 is an apocalyptic number.

123112434 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

123112434 is a wasteful number, since it uses less digits than its factorization.

123112434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20518744.

The product of its digits is 576, while the sum is 21.

The square root of 123112434 is about 11095.6042647528. The cubic root of 123112434 is about 497.4704698683.

Adding to 123112434 its reverse (434211321), we get a palindrome (557323755).

The spelling of 123112434 in words is "one hundred twenty-three million, one hundred twelve thousand, four hundred thirty-four".