1131313075 has 12 divisors (see below), whose sum is σ = 1463821488. Its totient is φ = 865700000.

The previous prime is 1131313061. The next prime is 1131313091. The reversal of 1131313075 is 5703131311.

It is not a de Polignac number, because 1131313075 - 2²⁷ = 997095347 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 983176 + ... + 984325.

It is an arithmetic number, because the mean of its divisors is an integer number (121985124).

Almost surely, 2^1131313075 is an apocalyptic number.

1131313075 is a deficient number, since it is larger than the sum of its proper divisors (332508413).

1131313075 is a wasteful number, since it uses less digits than its factorization.

1131313075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967534 (or 1967529 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 1131313075 is about 33634.9977701798. The cubic root of 1131313075 is about 1041.9837245700.

Adding to 1131313075 its reverse (5703131311), we get a palindrome (6834444386).

The spelling of 1131313075 in words is "one billion, one hundred thirty-one million, three hundred thirteen thousand, seventy-five".