123100120200 has 96 divisors (see below), whose sum is σ = 381722443200. Its totient is φ = 32817058560.

The previous prime is 123100120183. The next prime is 123100120219. The reversal of 123100120200 is 2021001321.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2145486 + ... + 2202114.

It is an arithmetic number, because the mean of its divisors is an integer number (3976275450).

Almost surely, 2^123100120200 is an apocalyptic number.

123100120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123100120200 is an abundant number, since it is smaller than the sum of its proper divisors (258622323000).

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

123100120200 is a wasteful number, since it uses less digits than its factorization.

123100120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60271 (or 60262 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 123100120200 its reverse (2021001321), we get a palindrome (125121121521).

The spelling of 123100120200 in words is "one hundred twenty-three billion, one hundred million, one hundred twenty thousand, two hundred".