1040313231 has 24 divisors (see below), whose sum is σ = 1520391600. Its totient is φ = 685392000.

The previous prime is 1040313223. The next prime is 1040313269. The reversal of 1040313231 is 1323130401.

It is not a de Polignac number, because 1040313231 - 2³ = 1040313223 is a prime.

It is a super-2 number, since 2×1040313231² = 2164503237187318722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040313031) 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 23 ways as a sum of consecutive naturals, for example, 952996 + ... + 954086.

It is an arithmetic number, because the mean of its divisors is an integer number (63349650).

Almost surely, 2^1040313231 is an apocalyptic number.

1040313231 is a deficient number, since it is larger than the sum of its proper divisors (480078369).

1040313231 is a wasteful number, since it uses less digits than its factorization.

1040313231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2247 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1040313231 is about 32253.8870680729. The cubic root of 1040313231 is about 1013.2611092939.

Adding to 1040313231 its reverse (1323130401), we get a palindrome (2363443632).

The spelling of 1040313231 in words is "one billion, forty million, three hundred thirteen thousand, two hundred thirty-one".