1131355200 has 84 divisors (see below), whose sum is σ = 3711803600. Its totient is φ = 301693440.

The previous prime is 1131355157. The next prime is 1131355207. The reversal of 1131355200 is 25531311.

It is not an unprimeable number, because it can be changed into a prime (1131355207) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 113050 + ... + 122649.

Almost surely, 2^1131355200 is an apocalyptic number.

1131355200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131355200 is an abundant number, since it is smaller than the sum of its proper divisors (2580448400).

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

1131355200 is a wasteful number, since it uses less digits than its factorization.

1131355200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235724 (or 235709 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1131355200 is about 33635.6239722114. The cubic root of 1131355200 is about 1041.9966573353.

Adding to 1131355200 its reverse (25531311), we get a palindrome (1156886511).

The spelling of 1131355200 in words is "one billion, one hundred thirty-one million, three hundred fifty-five thousand, two hundred".