11491610331023 has 4 divisors (see below), whose sum is σ = 11492339186160. Its totient is φ = 11490881475888.

The previous prime is 11491610330999. The next prime is 11491610331053. The reversal of 11491610331023 is 32013301619411.

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 11491610331023 - 2²⁸ = 11491341895567 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 (11491610331053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364403918 + ... + 364435451.

It is an arithmetic number, because the mean of its divisors is an integer number (2873084796540).

Almost surely, 2^{11491610331023} is an apocalyptic number.

11491610331023 is a deficient number, since it is larger than the sum of its proper divisors (728855137).

11491610331023 is an equidigital number, since it uses as much as digits as its factorization.

11491610331023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728855136.

The product of its (nonzero) digits is 11664, while the sum is 35.

The spelling of 11491610331023 in words is "eleven trillion, four hundred ninety-one billion, six hundred ten million, three hundred thirty-one thousand, twenty-three".