121341444143121 has 12 divisors (see below), whose sum is σ = 177739580154240. Its totient is φ = 79754939811960.

The previous prime is 121341444143111. The next prime is 121341444143149.

121341444143121 is a `hidden beast` number, since 1 + 2 + 13 + 41 + 4 + 441 + 43 + 121 = 666.

121341444143121 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 121341444143121 - 2⁹ = 121341444142609 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121341444143111) 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, 94946356281 + ... + 94946357558.

It is an arithmetic number, because the mean of its divisors is an integer number (14811631679520).

Almost surely, 2^{121341444143121} is an apocalyptic number.

It is an amenable number.

121341444143121 is a deficient number, since it is larger than the sum of its proper divisors (56398136011119).

121341444143121 is a wasteful number, since it uses less digits than its factorization.

121341444143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189892713916 (or 189892713913 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The spelling of 121341444143121 in words is "one hundred twenty-one trillion, three hundred forty-one billion, four hundred forty-four million, one hundred forty-three thousand, one hundred twenty-one".