123001120200 has 384 divisors, whose sum is σ = 450128689920. Its totient is φ = 27197337600.

The previous prime is 123001120171. The next prime is 123001120213. The reversal of 123001120200 is 2021100321.

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 95 ways as a sum of consecutive naturals, for example, 28125214 + ... + 28129586.

It is an arithmetic number, because the mean of its divisors is an integer number (1172210130).

Almost surely, 2^123001120200 is an apocalyptic number.

123001120200 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 123001120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225064344960).

123001120200 is an abundant number, since it is smaller than the sum of its proper divisors (327127569720).

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

123001120200 is a wasteful number, since it uses less digits than its factorization.

123001120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4617 (or 4608 counting only the distinct ones).

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

Adding to 123001120200 its reverse (2021100321), we get a palindrome (125022220521).

The spelling of 123001120200 in words is "one hundred twenty-three billion, one million, one hundred twenty thousand, two hundred".