1323210131200 has 108 divisors (see below), whose sum is σ = 3275767486768. Its totient is φ = 529184563200.

The previous prime is 1323210131179. The next prime is 1323210131203. The reversal of 1323210131200 is 21310123231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323210131203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40694149 + ... + 40726651.

Almost surely, 2^{1323210131200} is an apocalyptic number.

1323210131200 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 1323210131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1637883743384).

1323210131200 is an abundant number, since it is smaller than the sum of its proper divisors (1952557355568).

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

1323210131200 is an equidigital number, since it uses as much as digits as its factorization.

1323210131200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38890 (or 38871 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1323210131200 its reverse (21310123231), we get a palindrome (1344520254431).

The spelling of 1323210131200 in words is "one trillion, three hundred twenty-three billion, two hundred ten million, one hundred thirty-one thousand, two hundred".