12771123143121 has 24 divisors (see below), whose sum is σ = 21083421369920. Its totient is φ = 7297461909216.

The previous prime is 12771123143113. The next prime is 12771123143159. The reversal of 12771123143121 is 12134132117721.

12771123143121 is a `hidden beast` number, since 1 + 27 + 7 + 1 + 1 + 2 + 314 + 312 + 1 = 666.

It is not a de Polignac number, because 12771123143121 - 2³ = 12771123143113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12771123103121) 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, 3043075 + ... + 5899368.

Almost surely, 2^{12771123143121} is an apocalyptic number.

It is an amenable number.

12771123143121 is a deficient number, since it is larger than the sum of its proper divisors (8312298226799).

12771123143121 is a wasteful number, since it uses less digits than its factorization.

12771123143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8965125 (or 8965122 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The spelling of 12771123143121 in words is "twelve trillion, seven hundred seventy-one billion, one hundred twenty-three million, one hundred forty-three thousand, one hundred twenty-one".