11141555521 has 8 divisors (see below), whose sum is σ = 11771235200. Its totient is φ = 10516204080.

The previous prime is 11141555519. The next prime is 11141555539. The reversal of 11141555521 is 12555514111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11141555521 - 2¹ = 11141555519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17141555521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1076766 + ... + 1087063.

It is an arithmetic number, because the mean of its divisors is an integer number (1471404400).

Almost surely, 2^11141555521 is an apocalyptic number.

It is an amenable number.

11141555521 is a deficient number, since it is larger than the sum of its proper divisors (629679679).

11141555521 is a wasteful number, since it uses less digits than its factorization.

11141555521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2164119.

The product of its digits is 5000, while the sum is 31.

The spelling of 11141555521 in words is "eleven billion, one hundred forty-one million, five hundred fifty-five thousand, five hundred twenty-one".