1131330205 has 16 divisors (see below), whose sum is σ = 1433594880. Its totient is φ = 854701632.

The previous prime is 1131330197. The next prime is 1131330227. The reversal of 1131330205 is 5020331311.

It is a cyclic number.

It is not a de Polignac number, because 1131330205 - 2³ = 1131330197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11332 + ... + 48898.

It is an arithmetic number, because the mean of its divisors is an integer number (89599680).

Almost surely, 2^1131330205 is an apocalyptic number.

It is an amenable number.

1131330205 is a deficient number, since it is larger than the sum of its proper divisors (302264675).

1131330205 is a wasteful number, since it uses less digits than its factorization.

1131330205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37908.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1131330205 is about 33635.2524146913. The cubic root of 1131330205 is about 1041.9889836774.

Adding to 1131330205 its reverse (5020331311), we get a palindrome (6151661516).

The spelling of 1131330205 in words is "one billion, one hundred thirty-one million, three hundred thirty thousand, two hundred five".