123310420 has 24 divisors (see below), whose sum is σ = 259918848. Its totient is φ = 49140000.

The previous prime is 123310417. The next prime is 123310427. The reversal of 123310420 is 24013321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123310394 and 123310403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123310427) 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 7 ways as a sum of consecutive naturals, for example, 5956 + ... + 16795.

It is an arithmetic number, because the mean of its divisors is an integer number (10829952).

Almost surely, 2^123310420 is an apocalyptic number.

123310420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123310420 is an abundant number, since it is smaller than the sum of its proper divisors (136608428).

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

123310420 is a wasteful number, since it uses less digits than its factorization.

123310420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23031 (or 23029 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123310420 is about 11104.5225021160. The cubic root of 123310420 is about 497.7369997789.

Adding to 123310420 its reverse (24013321), we get a palindrome (147323741).

The spelling of 123310420 in words is "one hundred twenty-three million, three hundred ten thousand, four hundred twenty".