123413420 has 24 divisors (see below), whose sum is σ = 279104784. Its totient is φ = 45567936.

The previous prime is 123413401. The next prime is 123413453. The reversal of 123413420 is 24314321.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123413392 and 123413401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237074 + ... + 237593.

It is an arithmetic number, because the mean of its divisors is an integer number (11629366).

Almost surely, 2^123413420 is an apocalyptic number.

123413420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123413420 is an abundant number, since it is smaller than the sum of its proper divisors (155691364).

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

123413420 is a wasteful number, since it uses less digits than its factorization.

123413420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474689 (or 474687 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 123413420 is about 11109.1592841223. The cubic root of 123413420 is about 497.8755461763.

Adding to 123413420 its reverse (24314321), we get a palindrome (147727741).

Subtracting from 123413420 its reverse (24314321), we obtain a palindrome (99099099).

The spelling of 123413420 in words is "one hundred twenty-three million, four hundred thirteen thousand, four hundred twenty".