123414450420 has 24 divisors (see below), whose sum is σ = 345560461344. Its totient is φ = 32910520096.

The previous prime is 123414450413. The next prime is 123414450463. The reversal of 123414450420 is 24054414321.

It is a super-2 number, since 2×123414450420² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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 7 ways as a sum of consecutive naturals, for example, 1028453694 + ... + 1028453813.

It is an arithmetic number, because the mean of its divisors is an integer number (14398352556).

Almost surely, 2^123414450420 is an apocalyptic number.

123414450420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123414450420 is an abundant number, since it is smaller than the sum of its proper divisors (222146010924).

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

123414450420 is a wasteful number, since it uses less digits than its factorization.

123414450420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056907519 (or 2056907517 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 123414450420 its reverse (24054414321), we get a palindrome (147468864741).

The spelling of 123414450420 in words is "one hundred twenty-three billion, four hundred fourteen million, four hundred fifty thousand, four hundred twenty".