123010200 has 144 divisors (see below), whose sum is σ = 424504080. Its totient is φ = 31898880.

The previous prime is 123010177. The next prime is 123010207. The reversal of 123010200 is 2010321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123010207) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 65677 + ... + 67523.

It is an arithmetic number, because the mean of its divisors is an integer number (2947945).

Almost surely, 2^123010200 is an apocalyptic number.

123010200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123010200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212252040).

123010200 is an abundant number, since it is smaller than the sum of its proper divisors (301493880).

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

123010200 is a wasteful number, since it uses less digits than its factorization.

123010200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1906 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 123010200 is about 11090.9963483900. The cubic root of 123010200 is about 497.3327299757.

Adding to 123010200 its reverse (2010321), we get a palindrome (125020521).

The spelling of 123010200 in words is "one hundred twenty-three million, ten thousand, two hundred".