12811020592111 has 24 divisors (see below), whose sum is σ = 15044658561504. Its totient is φ = 10876343063040.

The previous prime is 12811020592109. The next prime is 12811020592151. The reversal of 12811020592111 is 11129502011821.

It is a happy number.

It is not a de Polignac number, because 12811020592111 - 2¹ = 12811020592109 is a prime.

It is a super-4 number, since 4×12811020592111⁴ (a number of 54 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12811020592151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7419166 + ... + 8981428.

It is an arithmetic number, because the mean of its divisors is an integer number (626860773396).

Almost surely, 2^{12811020592111} is an apocalyptic number.

12811020592111 is a deficient number, since it is larger than the sum of its proper divisors (2233637969393).

12811020592111 is a wasteful number, since it uses less digits than its factorization.

12811020592111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1563871 (or 1563864 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 34.

The spelling of 12811020592111 in words is "twelve trillion, eight hundred eleven billion, twenty million, five hundred ninety-two thousand, one hundred eleven".