123000120 has 80 divisors (see below), whose sum is σ = 413427960. Its totient is φ = 32799168.

The previous prime is 123000037. The next prime is 123000133. The reversal of 123000120 is 21000321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

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, 15742 + ... + 22221.

Almost surely, 2^123000120 is an apocalyptic number.

123000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123000120 is an abundant number, since it is smaller than the sum of its proper divisors (290427840).

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

123000120 is a wasteful number, since it uses less digits than its factorization.

123000120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37986 (or 37973 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 123000120 is about 11090.5419164259. The cubic root of 123000120 is about 497.3191450566.

Adding to 123000120 its reverse (21000321), we get a palindrome (144000441).

The spelling of 123000120 in words is "one hundred twenty-three million, one hundred twenty", and thus it is an aban number.