123400200 has 192 divisors, whose sum is σ = 477112320. Its totient is φ = 25632000.

The previous prime is 123400187. The next prime is 123400213. The reversal of 123400200 is 2004321.

It is an interprime number because it is at equal distance from previous prime (123400187) and next prime (123400213).

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 47 ways as a sum of consecutive naturals, for example, 44865 + ... + 47535.

It is an arithmetic number, because the mean of its divisors is an integer number (2484960).

Almost surely, 2^123400200 is an apocalyptic number.

123400200 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 123400200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238556160).

123400200 is an abundant number, since it is smaller than the sum of its proper divisors (353712120).

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

123400200 is a wasteful number, since it uses less digits than its factorization.

123400200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2708 (or 2699 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 123400200 is about 11108.5642636661. The cubic root of 123400200 is about 497.8577681266.

Adding to 123400200 its reverse (2004321), we get a palindrome (125404521).

The spelling of 123400200 in words is "one hundred twenty-three million, four hundred thousand, two hundred".