1131310311 has 16 divisors (see below), whose sum is σ = 1558791168. Its totient is φ = 729072000.

The previous prime is 1131310307. The next prime is 1131310319. The reversal of 1131310311 is 1130131311.

It is not a de Polignac number, because 1131310311 - 2² = 1131310307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131310319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84636 + ... + 97086.

It is an arithmetic number, because the mean of its divisors is an integer number (97424448).

Almost surely, 2^1131310311 is an apocalyptic number.

1131310311 is a deficient number, since it is larger than the sum of its proper divisors (427480857).

1131310311 is a wasteful number, since it uses less digits than its factorization.

1131310311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13462.

The product of its (nonzero) digits is 27, while the sum is 15.

The square root of 1131310311 is about 33634.9566819998. The cubic root of 1131310311 is about 1041.9828759851.

Adding to 1131310311 its reverse (1130131311), we get a palindrome (2261441622).

The spelling of 1131310311 in words is "one billion, one hundred thirty-one million, three hundred ten thousand, three hundred eleven".