123026320 has 40 divisors (see below), whose sum is σ = 287983800. Its totient is φ = 48875520.

The previous prime is 123026279. The next prime is 123026341. The reversal of 123026320 is 23620321.

It can be written as a sum of positive squares in 4 ways, for example, as 2202256 + 120824064 = 1484^2 + 10992^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 6760 + ... + 17080.

It is an arithmetic number, because the mean of its divisors is an integer number (7199595).

Almost surely, 2^123026320 is an apocalyptic number.

123026320 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 123026320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143991900).

123026320 is an abundant number, since it is smaller than the sum of its proper divisors (164957480).

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

123026320 is a wasteful number, since it uses less digits than its factorization.

123026320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10483 (or 10477 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 123026320 is about 11091.7230401773. The cubic root of 123026320 is about 497.3544535223.

Adding to 123026320 its reverse (23620321), we get a palindrome (146646641).

The spelling of 123026320 in words is "one hundred twenty-three million, twenty-six thousand, three hundred twenty".