1331232011200 has 336 divisors, whose sum is σ = 4040881367040. Its totient is φ = 420341575680.

The previous prime is 1331232011189. The next prime is 1331232011251. The reversal of 1331232011200 is 21102321331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64490481 + ... + 64511119.

It is an arithmetic number, because the mean of its divisors is an integer number (12026432640).

Almost surely, 2^{1331232011200} is an apocalyptic number.

1331232011200 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 1331232011200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2020440683520).

1331232011200 is an abundant number, since it is smaller than the sum of its proper divisors (2709649355840).

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

1331232011200 is a wasteful number, since it uses less digits than its factorization.

1331232011200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21124 (or 21109 counting only the distinct ones).

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

Adding to 1331232011200 its reverse (21102321331), we get a palindrome (1352334332531).

The spelling of 1331232011200 in words is "one trillion, three hundred thirty-one billion, two hundred thirty-two million, eleven thousand, two hundred".