11145242354121 has 48 divisors (see below), whose sum is σ = 16912648276992. Its totient is φ = 7059008325600.

The previous prime is 11145242354063. The next prime is 11145242354171. The reversal of 11145242354121 is 12145324254111.

11145242354121 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 5 + 2 + 4 + 235 + 412 + 1 = 666.

It is not a de Polignac number, because 11145242354121 - 2¹⁰ = 11145242353097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11145242354171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21185556 + ... + 21705258.

It is an arithmetic number, because the mean of its divisors is an integer number (352346839104).

Almost surely, 2^{11145242354121} is an apocalyptic number.

It is an amenable number.

11145242354121 is a deficient number, since it is larger than the sum of its proper divisors (5767405922871).

11145242354121 is a wasteful number, since it uses less digits than its factorization.

11145242354121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520434 (or 520431 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The spelling of 11145242354121 in words is "eleven trillion, one hundred forty-five billion, two hundred forty-two million, three hundred fifty-four thousand, one hundred twenty-one".