123020120 has 32 divisors (see below), whose sum is σ = 277920720. Its totient is φ = 49008000.

The previous prime is 123020113. The next prime is 123020167. The reversal of 123020120 is 21020321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3914 + ... + 16166.

Almost surely, 2^123020120 is an apocalyptic number.

123020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123020120 is an abundant number, since it is smaller than the sum of its proper divisors (154900600).

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

123020120 is a wasteful number, since it uses less digits than its factorization.

123020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12515 (or 12511 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 123020120 is about 11091.4435489705. The cubic root of 123020120 is about 497.3460985366.

Adding to 123020120 its reverse (21020321), we get a palindrome (144040441).

The spelling of 123020120 in words is "one hundred twenty-three million, twenty thousand, one hundred twenty".