1131320000 has 70 divisors (see below), whose sum is σ = 2805405108. Its totient is φ = 452512000.

The previous prime is 1131319999. The next prime is 1131320017. The reversal of 1131320000 is 231311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 25859 + ... + 54141.

Almost surely, 2^1131320000 is an apocalyptic number.

1131320000 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 1131320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1402702554).

1131320000 is an abundant number, since it is smaller than the sum of its proper divisors (1674085108).

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

1131320000 is an frugal number, since it uses more digits than its factorization.

1131320000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28315 (or 28290 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1131320000 is about 33635.1007133917. The cubic root of 1131320000 is about 1041.9858506312.

Adding to 1131320000 its reverse (231311), we get a palindrome (1131551311).

It can be divided in two parts, 11313 and 20000, that added together give a palindrome (31313).

The spelling of 1131320000 in words is "one billion, one hundred thirty-one million, three hundred twenty thousand".