123280120 has 32 divisors (see below), whose sum is σ = 282618720. Its totient is φ = 48380800.

The previous prime is 123280117. The next prime is 123280121. The reversal of 123280120 is 21082321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123280121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26956 + ... + 31195.

It is an arithmetic number, because the mean of its divisors is an integer number (8831835).

Almost surely, 2^123280120 is an apocalyptic number.

123280120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123280120 is an abundant number, since it is smaller than the sum of its proper divisors (159338600).

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

123280120 is a wasteful number, since it uses less digits than its factorization.

123280120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58215 (or 58211 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 123280120 is about 11103.1581092949. The cubic root of 123280120 is about 497.6962282406.

The spelling of 123280120 in words is "one hundred twenty-three million, two hundred eighty thousand, one hundred twenty".