11871211116613 has 8 divisors (see below), whose sum is σ = 12101092071680. Its totient is φ = 11643320473200.

The previous prime is 11871211116593. The next prime is 11871211116617. The reversal of 11871211116613 is 31661111217811.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11871211116613 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 (11871211116617) 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 7 ways as a sum of consecutive naturals, for example, 497565870 + ... + 497589727.

It is an arithmetic number, because the mean of its divisors is an integer number (1512636508960).

Almost surely, 2^{11871211116613} is an apocalyptic number.

It is an amenable number.

11871211116613 is a deficient number, since it is larger than the sum of its proper divisors (229880955067).

11871211116613 is an equidigital number, since it uses as much as digits as its factorization.

11871211116613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995155827.

The product of its digits is 12096, while the sum is 40.

The spelling of 11871211116613 in words is "eleven trillion, eight hundred seventy-one billion, two hundred eleven million, one hundred sixteen thousand, six hundred thirteen".