1230320212200 has 144 divisors (see below), whose sum is σ = 4143336818400. Its totient is φ = 327171331200.

The previous prime is 1230320212169. The next prime is 1230320212229. The reversal of 1230320212200 is 22120230321.

1230320212200 is a `hidden beast` number, since 1 + 230 + 3 + 20 + 212 + 200 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 305766 + ... + 1598165.

It is an arithmetic number, because the mean of its divisors is an integer number (28773172350).

Almost surely, 2^{1230320212200} is an apocalyptic number.

1230320212200 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 1230320212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2071668409200).

1230320212200 is an abundant number, since it is smaller than the sum of its proper divisors (2913016606200).

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

1230320212200 is a wasteful number, since it uses less digits than its factorization.

1230320212200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904312 (or 1904300 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1230320212200 its reverse (22120230321), we get a palindrome (1252440442521).

The spelling of 1230320212200 in words is "one trillion, two hundred thirty billion, three hundred twenty million, two hundred twelve thousand, two hundred".