11115141321545 has 16 divisors (see below), whose sum is σ = 13463015686848. Its totient is φ = 8808884673600.

The previous prime is 11115141321461. The next prime is 11115141321587. The reversal of 11115141321545 is 54512314151111.

It is not a de Polignac number, because 11115141321545 - 2²⁰ = 11115140272969 is a prime.

It is a Duffinian number.

It is a Curzon 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, 63463595 + ... + 63638495.

It is an arithmetic number, because the mean of its divisors is an integer number (841438480428).

Almost surely, 2^{11115141321545} is an apocalyptic number.

It is an amenable number.

11115141321545 is a deficient number, since it is larger than the sum of its proper divisors (2347874365303).

11115141321545 is a wasteful number, since it uses less digits than its factorization.

11115141321545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293800.

The product of its digits is 12000, while the sum is 35.

Adding to 11115141321545 its reverse (54512314151111), we get a palindrome (65627455472656).

The spelling of 11115141321545 in words is "eleven trillion, one hundred fifteen billion, one hundred forty-one million, three hundred twenty-one thousand, five hundred forty-five".