123020130 has 32 divisors (see below), whose sum is σ = 296792064. Its totient is φ = 32633856.

The previous prime is 123020113. The next prime is 123020167. The reversal of 123020130 is 31020321.

It is a happy number.

It is a Curzon 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 15 ways as a sum of consecutive naturals, for example, 4834 + ... + 16413.

It is an arithmetic number, because the mean of its divisors is an integer number (9274752).

Almost surely, 2^123020130 is an apocalyptic number.

123020130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123020130 is an abundant number, since it is smaller than the sum of its proper divisors (173771934).

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

123020130 is a wasteful number, since it uses less digits than its factorization.

123020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21450.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 123020130 is about 11091.4439997685. The cubic root of 123020130 is about 497.3461120126.

Adding to 123020130 its reverse (31020321), we get a palindrome (154040451).

The spelling of 123020130 in words is "one hundred twenty-three million, twenty thousand, one hundred thirty".