123221230 has 64 divisors (see below), whose sum is σ = 250905600. Its totient is φ = 43182720.

The previous prime is 123221221. The next prime is 123221291. The reversal of 123221230 is 32122321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 515451 + ... + 515689.

It is an arithmetic number, because the mean of its divisors is an integer number (3920400).

Almost surely, 2^123221230 is an apocalyptic number.

123221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123221230 is an abundant number, since it is smaller than the sum of its proper divisors (127684370).

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

123221230 is a wasteful number, since it uses less digits than its factorization.

123221230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 123221230 is about 11100.5058443298. The cubic root of 123221230 is about 497.6169670181.

Adding to 123221230 its reverse (32122321), we get a palindrome (155343551).

The spelling of 123221230 in words is "one hundred twenty-three million, two hundred twenty-one thousand, two hundred thirty".