11121141144665 has 16 divisors (see below), whose sum is σ = 13985369394048. Its totient is φ = 8473566600576.

The previous prime is 11121141144653. The next prime is 11121141144721. The reversal of 11121141144665 is 56644114112111.

It is a cyclic number.

It is not a de Polignac number, because 11121141144665 - 2⁶ = 11121141144601 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207495899 + ... + 207549488.

It is an arithmetic number, because the mean of its divisors is an integer number (874085587128).

Almost surely, 2^{11121141144665} is an apocalyptic number.

It is an amenable number.

11121141144665 is a deficient number, since it is larger than the sum of its proper divisors (2864228249383).

11121141144665 is a wasteful number, since it uses less digits than its factorization.

11121141144665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415045648.

The product of its digits is 23040, while the sum is 38.

Adding to 11121141144665 its reverse (56644114112111), we get a palindrome (67765255256776).

The spelling of 11121141144665 in words is "eleven trillion, one hundred twenty-one billion, one hundred forty-one million, one hundred forty-four thousand, six hundred sixty-five".