1163312311 has 16 divisors (see below), whose sum is σ = 1364086080. Its totient is φ = 971262720.

The previous prime is 1163312251. The next prime is 1163312321. The reversal of 1163312311 is 1132133611.

It is a cyclic number.

It is not a de Polignac number, because 1163312311 - 2¹³ = 1163304119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1163312321) 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, 200625 + ... + 206341.

It is an arithmetic number, because the mean of its divisors is an integer number (85255380).

Almost surely, 2^1163312311 is an apocalyptic number.

1163312311 is a deficient number, since it is larger than the sum of its proper divisors (200773769).

1163312311 is an equidigital number, since it uses as much as digits as its factorization.

1163312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6474.

The product of its digits is 324, while the sum is 22.

The square root of 1163312311 is about 34107.3644686892. The cubic root of 1163312311 is about 1051.7167112874.

Adding to 1163312311 its reverse (1132133611), we get a palindrome (2295445922).

The spelling of 1163312311 in words is "one billion, one hundred sixty-three million, three hundred twelve thousand, three hundred eleven".