123200203200 has 84 divisors (see below), whose sum is σ = 404199349080. Its totient is φ = 32853386240.

The previous prime is 123200203171. The next prime is 123200203229. The reversal of 123200203200 is 2302002321.

It is an interprime number because it is at equal distance from previous prime (123200203171) and next prime (123200203229).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 123200203200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12828555 + ... + 12838154.

Almost surely, 2^123200203200 is an apocalyptic number.

123200203200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123200203200 is an abundant number, since it is smaller than the sum of its proper divisors (280999145880).

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

123200203200 is a wasteful number, since it uses less digits than its factorization.

123200203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25666734 (or 25666719 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 123200203200 its reverse (2302002321), we get a palindrome (125502205521).

The spelling of 123200203200 in words is "one hundred twenty-three billion, two hundred million, two hundred three thousand, two hundred".