1031130306 has 12 divisors (see below), whose sum is σ = 2234115702. Its totient is φ = 343710096.

The previous prime is 1031130271. The next prime is 1031130307. The reversal of 1031130306 is 6030311301.

It can be written as a sum of positive squares in only one way, i.e., 704424681 + 326705625 = 26541^2 + 18075^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 57285017 = 1031130306 / (1 + 0 + 3 + 1 + 1 + 3 + 0 + 3 + 0 + 6).

It is not an unprimeable number, because it can be changed into a prime (1031130307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28642491 + ... + 28642526.

Almost surely, 2^1031130306 is an apocalyptic number.

1031130306 is an abundant number, since it is smaller than the sum of its proper divisors (1202985396).

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

1031130306 is a wasteful number, since it uses less digits than its factorization.

1031130306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57285025 (or 57285022 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1031130306 is about 32111.2177595307. The cubic root of 1031130306 is about 1010.2709157900.

Adding to 1031130306 its reverse (6030311301), we get a palindrome (7061441607).

The spelling of 1031130306 in words is "one billion, thirty-one million, one hundred thirty thousand, three hundred six".