11491682311 has 4 divisors (see below), whose sum is σ = 11514259800. Its totient is φ = 11469104824.

The previous prime is 11491682309. The next prime is 11491682327. The reversal of 11491682311 is 11328619411.

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 11491682311 - 2¹ = 11491682309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11491682611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11287981 + ... + 11288998.

It is an arithmetic number, because the mean of its divisors is an integer number (2878564950).

Almost surely, 2^11491682311 is an apocalyptic number.

11491682311 is a deficient number, since it is larger than the sum of its proper divisors (22577489).

11491682311 is an equidigital number, since it uses as much as digits as its factorization.

11491682311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22577488.

The product of its digits is 10368, while the sum is 37.

The spelling of 11491682311 in words is "eleven billion, four hundred ninety-one million, six hundred eighty-two thousand, three hundred eleven".