12143121104 has 20 divisors (see below), whose sum is σ = 24286243200. Its totient is φ = 5875703520.

The previous prime is 12143121043. The next prime is 12143121139. The reversal of 12143121104 is 40112134121.

12143121104 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12240554 + ... + 12241545.

It is an arithmetic number, because the mean of its divisors is an integer number (1214312160).

Almost surely, 2^12143121104 is an apocalyptic number.

It is an amenable number.

12143121104 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12143121104 is a wasteful number, since it uses less digits than its factorization.

12143121104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24482138 (or 24482132 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12143121104 its reverse (40112134121), we get a palindrome (52255255225).

The spelling of 12143121104 in words is "twelve billion, one hundred forty-three million, one hundred twenty-one thousand, one hundred four".