210123133200 has 720 divisors, whose sum is σ = 789987758976. Its totient is φ = 51580108800.

The previous prime is 210123133159. The next prime is 210123133211. The reversal of 210123133200 is 2331321012.

210123133200 is a `hidden beast` number, since 2 + 101 + 231 + 332 + 0 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (720).

It is a super-2 number, since 2×210123133200² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 327804880 + ... + 327805520.

Almost surely, 2^210123133200 is an apocalyptic number.

210123133200 is a gapful number since it is divisible by the number (20) 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 210123133200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (394993879488).

210123133200 is an abundant number, since it is smaller than the sum of its proper divisors (579864625776).

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

210123133200 is a wasteful number, since it uses less digits than its factorization.

210123133200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 210123133200 its reverse (2331321012), we get a palindrome (212454454212).

The spelling of 210123133200 in words is "two hundred ten billion, one hundred twenty-three million, one hundred thirty-three thousand, two hundred".