1131040311 has 8 divisors (see below), whose sum is σ = 1596762864. Its totient is φ = 709672320.

The previous prime is 1131040297. The next prime is 1131040321. The reversal of 1131040311 is 1130401311.

1131040311 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131040311 - 2⁵ = 1131040279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131040321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11088580 + ... + 11088681.

It is an arithmetic number, because the mean of its divisors is an integer number (199595358).

Almost surely, 2^1131040311 is an apocalyptic number.

1131040311 is a deficient number, since it is larger than the sum of its proper divisors (465722553).

1131040311 is a wasteful number, since it uses less digits than its factorization.

1131040311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22177281.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1131040311 is about 33630.9427610943. The cubic root of 1131040311 is about 1041.8999757240.

Adding to 1131040311 its reverse (1130401311), we get a palindrome (2261441622).

The spelling of 1131040311 in words is "one billion, one hundred thirty-one million, forty thousand, three hundred eleven".