11871373612813 has 12 divisors (see below), whose sum is σ = 14023419288768. Its totient is φ = 9961991841360.

The previous prime is 11871373612783. The next prime is 11871373612829. The reversal of 11871373612813 is 31821637317811.

It is a de Polignac number, because none of the positive numbers 2^k-11871373612813 is a prime.

It is a super-2 number, since 2×11871373612813² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11871373612853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3192944245 + ... + 3192947962.

It is an arithmetic number, because the mean of its divisors is an integer number (1168618274064).

Almost surely, 2^{11871373612813} is an apocalyptic number.

11871373612813 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11871373612813 is a deficient number, since it is larger than the sum of its proper divisors (2152045675955).

11871373612813 is a wasteful number, since it uses less digits than its factorization.

11871373612813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385892244 (or 6385892231 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 52.

The spelling of 11871373612813 in words is "eleven trillion, eight hundred seventy-one billion, three hundred seventy-three million, six hundred twelve thousand, eight hundred thirteen".