123000240 has 80 divisors (see below), whose sum is σ = 415973376. Its totient is φ = 29817600.

The previous prime is 123000239. The next prime is 123000259. The reversal of 123000240 is 42000321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20656 + ... + 25935.

Almost surely, 2^123000240 is an apocalyptic number.

123000240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123000240 is an abundant number, since it is smaller than the sum of its proper divisors (292973136).

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

123000240 is a wasteful number, since it uses less digits than its factorization.

123000240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46618 (or 46612 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 123000240 is about 11090.5473264398. The cubic root of 123000240 is about 497.3193067862.

Adding to 123000240 its reverse (42000321), we get a palindrome (165000561).

The spelling of 123000240 in words is "one hundred twenty-three million, two hundred forty", and thus it is an aban number.