2312491311 has 48 divisors (see below), whose sum is σ = 3816816640. Its totient is φ = 1337394240.

The previous prime is 2312491309. The next prime is 2312491327. The reversal of 2312491311 is 1131942132.

It is not a de Polignac number, because 2312491311 - 2¹ = 2312491309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2312491301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278226 + ... + 286416.

Almost surely, 2^2312491311 is an apocalyptic number.

2312491311 is a deficient number, since it is larger than the sum of its proper divisors (1504325329).

2312491311 is a wasteful number, since it uses less digits than its factorization.

2312491311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8356 (or 8353 counting only the distinct ones).

The product of its digits is 1296, while the sum is 27.

The square root of 2312491311 is about 48088.3698101734. The cubic root of 2312491311 is about 1322.3914619158.

The spelling of 2312491311 in words is "two billion, three hundred twelve million, four hundred ninety-one thousand, three hundred eleven".