1131303606 has 16 divisors (see below), whose sum is σ = 2268254448. Its totient is φ = 376160000.

The previous prime is 1131303587. The next prime is 1131303629. The reversal of 1131303606 is 6063031311.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232695 + ... + 237506.

It is an arithmetic number, because the mean of its divisors is an integer number (141765903).

Almost surely, 2^1131303606 is an apocalyptic number.

1131303606 is an abundant number, since it is smaller than the sum of its proper divisors (1136950842).

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

1131303606 is a wasteful number, since it uses less digits than its factorization.

1131303606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470607.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 1131303606 is about 33634.8570087640. The cubic root of 1131303606 is about 1041.9808174550.

Adding to 1131303606 its reverse (6063031311), we get a palindrome (7194334917).

The spelling of 1131303606 in words is "one billion, one hundred thirty-one million, three hundred three thousand, six hundred six".