1131443205200 has 120 divisors (see below), whose sum is σ = 3389039843520. Its totient is φ = 352657612800.

The previous prime is 1131443205187. The next prime is 1131443205229. The reversal of 1131443205200 is 25023441311.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131443205200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18336785 + ... + 18398384.

It is an arithmetic number, because the mean of its divisors is an integer number (28241998696).

Almost surely, 2^{1131443205200} is an apocalyptic number.

1131443205200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131443205200 is an abundant number, since it is smaller than the sum of its proper divisors (2257596638320).

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

1131443205200 is a wasteful number, since it uses less digits than its factorization.

1131443205200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36735205 (or 36735194 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1131443205200 its reverse (25023441311), we get a palindrome (1156466646511).

The spelling of 1131443205200 in words is "one trillion, one hundred thirty-one billion, four hundred forty-three million, two hundred five thousand, two hundred".