11021143055 has 8 divisors (see below), whose sum is σ = 14242708032. Its totient is φ = 8138690208.

The previous prime is 11021143043. The next prime is 11021143069. The reversal of 11021143055 is 55034112011.

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 11021143055 - 2⁴ = 11021143039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11021143055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84777959 + ... + 84778088.

It is an arithmetic number, because the mean of its divisors is an integer number (1780338504).

Almost surely, 2^11021143055 is an apocalyptic number.

11021143055 is a deficient number, since it is larger than the sum of its proper divisors (3221564977).

11021143055 is a wasteful number, since it uses less digits than its factorization.

11021143055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169556065.

The product of its (nonzero) digits is 600, while the sum is 23.

Adding to 11021143055 its reverse (55034112011), we get a palindrome (66055255066).

The spelling of 11021143055 in words is "eleven billion, twenty-one million, one hundred forty-three thousand, fifty-five".