1131311163 has 8 divisors (see below), whose sum is σ = 1509684048. Its totient is φ = 753572864.

The previous prime is 1131311161. The next prime is 1131311171. The reversal of 1131311163 is 3611131311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131311163 - 2¹ = 1131311161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131311161) 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, 154470 + ... + 161627.

It is an arithmetic number, because the mean of its divisors is an integer number (188710506).

Almost surely, 2^1131311163 is an apocalyptic number.

1131311163 is a deficient number, since it is larger than the sum of its proper divisors (378372885).

1131311163 is a wasteful number, since it uses less digits than its factorization.

1131311163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317293.

The product of its digits is 162, while the sum is 21.

The square root of 1131311163 is about 33634.9693473920. The cubic root of 1131311163 is about 1041.9831375606.

Adding to 1131311163 its reverse (3611131311), we get a palindrome (4742442474).

The spelling of 1131311163 in words is "one billion, one hundred thirty-one million, three hundred eleven thousand, one hundred sixty-three".