2311134531 has 4 divisors (see below), whose sum is σ = 3081512712. Its totient is φ = 1540756352.

The previous prime is 2311134523. The next prime is 2311134533. The reversal of 2311134531 is 1354311132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2311134531 - 2³ = 2311134523 is a prime.

It is a super-2 number, since 2×2311134531² = 10682685640761179922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2311134533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385189086 + ... + 385189091.

It is an arithmetic number, because the mean of its divisors is an integer number (770378178).

Almost surely, 2^2311134531 is an apocalyptic number.

2311134531 is a deficient number, since it is larger than the sum of its proper divisors (770378181).

2311134531 is an equidigital number, since it uses as much as digits as its factorization.

2311134531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770378180.

The product of its digits is 1080, while the sum is 24.

The square root of 2311134531 is about 48074.2605871375. The cubic root of 2311134531 is about 1322.1327877478.

Adding to 2311134531 its reverse (1354311132), we get a palindrome (3665445663).

The spelling of 2311134531 in words is "two billion, three hundred eleven million, one hundred thirty-four thousand, five hundred thirty-one".