123223680 has 160 divisors (see below), whose sum is σ = 440239140. Its totient is φ = 32845824.

The previous prime is 123223679. The next prime is 123223693. The reversal of 123223680 is 86322321.

It can be written as a sum of positive squares in 2 ways, for example, as 121352256 + 1871424 = 11016^2 + 1368^2 .

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50652 + ... + 53028.

Almost surely, 2^123223680 is an apocalyptic number.

123223680 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 123223680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220119570).

123223680 is an abundant number, since it is smaller than the sum of its proper divisors (317015460).

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

123223680 is an equidigital number, since it uses as much as digits as its factorization.

123223680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408 (or 2387 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 123223680 is about 11100.6161991126. The cubic root of 123223680 is about 497.6202650253.

The spelling of 123223680 in words is "one hundred twenty-three million, two hundred twenty-three thousand, six hundred eighty".