123200630 has 32 divisors (see below), whose sum is σ = 258840576. Its totient is φ = 41340384.

The previous prime is 123200611. The next prime is 123200641. The reversal of 123200630 is 36002321.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123200599 and 123200608.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15434 + ... + 22013.

It is an arithmetic number, because the mean of its divisors is an integer number (8088768).

Almost surely, 2^123200630 is an apocalyptic number.

123200630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123200630 is an abundant number, since it is smaller than the sum of its proper divisors (135639946).

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

123200630 is a wasteful number, since it uses less digits than its factorization.

123200630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37508.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123200630 is about 11099.5779199031. The cubic root of 123200630 is about 497.5892351064.

Adding to 123200630 its reverse (36002321), we get a palindrome (159202951).

The spelling of 123200630 in words is "one hundred twenty-three million, two hundred thousand, six hundred thirty".