123471320 has 64 divisors (see below), whose sum is σ = 322747200. Its totient is φ = 41633280.

The previous prime is 123471317. The next prime is 123471347. The reversal of 123471320 is 23174321.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13466 + ... + 20694.

It is an arithmetic number, because the mean of its divisors is an integer number (5042925).

Almost surely, 2^123471320 is an apocalyptic number.

123471320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123471320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161373600).

123471320 is an abundant number, since it is smaller than the sum of its proper divisors (199275880).

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

123471320 is a wasteful number, since it uses less digits than its factorization.

123471320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7308 (or 7304 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 123471320 is about 11111.7649363186. The cubic root of 123471320 is about 497.9533942396.

The spelling of 123471320 in words is "one hundred twenty-three million, four hundred seventy-one thousand, three hundred twenty".