1132131231200 has 144 divisors (see below), whose sum is σ = 2771227223856. Its totient is φ = 451640217600.

The previous prime is 1132131231197. The next prime is 1132131231247. The reversal of 1132131231200 is 21321312311.

It is a happy number.

It is a super-2 number, since 2×1132131231200² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 948977804 + ... + 948978996.

It is an arithmetic number, because the mean of its divisors is an integer number (19244633499).

Almost surely, 2^{1132131231200} is an apocalyptic number.

1132131231200 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 1132131231200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1385613611928).

1132131231200 is an abundant number, since it is smaller than the sum of its proper divisors (1639095992656).

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

1132131231200 is a wasteful number, since it uses less digits than its factorization.

1132131231200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3384 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1132131231200 its reverse (21321312311), we get a palindrome (1153452543511).

The spelling of 1132131231200 in words is "one trillion, one hundred thirty-two billion, one hundred thirty-one million, two hundred thirty-one thousand, two hundred".