2312811 has 12 divisors (see below), whose sum is σ = 3486288. Its totient is φ = 1474704.

The previous prime is 2312809. The next prime is 2312861. The reversal of 2312811 is 1182132.

2312811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2312811 - 2¹ = 2312809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2312801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5380 + ... + 5793.

It is an arithmetic number, because the mean of its divisors is an integer number (290524).

2^2312811 is an apocalyptic number.

2312811 is a deficient number, since it is larger than the sum of its proper divisors (1173477).

2312811 is a wasteful number, since it uses less digits than its factorization.

2312811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11202 (or 11199 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 2312811 is about 1520.7928853069. The cubic root of 2312811 is about 132.2452396851.

Adding to 2312811 its reverse (1182132), we get a palindrome (3494943).

The spelling of 2312811 in words is "two million, three hundred twelve thousand, eight hundred eleven".