1131322320200 has 96 divisors (see below), whose sum is σ = 2723924095200. Its totient is φ = 436679362560.

The previous prime is 1131322320169. The next prime is 1131322320223. The reversal of 1131322320200 is 20232231311.

It is a super-2 number, since 2×1131322320200² (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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78665 + ... + 1506264.

It is an arithmetic number, because the mean of its divisors is an integer number (28374209325).

Almost surely, 2^{1131322320200} is an apocalyptic number.

1131322320200 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 1131322320200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1361962047600).

1131322320200 is an abundant number, since it is smaller than the sum of its proper divisors (1592601775000).

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

1131322320200 is a wasteful number, since it uses less digits than its factorization.

1131322320200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1585071 (or 1585062 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1131322320200 its reverse (20232231311), we get a palindrome (1151554551511).

The spelling of 1131322320200 in words is "one trillion, one hundred thirty-one billion, three hundred twenty-two million, three hundred twenty thousand, two hundred".