11101143205 has 16 divisors (see below), whose sum is σ = 14028494400. Its totient is φ = 8409899520.

The previous prime is 11101143197. The next prime is 11101143299. The reversal of 11101143205 is 50234110111.

It is not a de Polignac number, because 11101143205 - 2³ = 11101143197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent 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, 209845 + ... + 257365.

It is an arithmetic number, because the mean of its divisors is an integer number (876780900).

Almost surely, 2^11101143205 is an apocalyptic number.

It is an amenable number.

11101143205 is a deficient number, since it is larger than the sum of its proper divisors (2927351195).

11101143205 is a wasteful number, since it uses less digits than its factorization.

11101143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50004.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 11101143205 its reverse (50234110111), we get a palindrome (61335253316).

The spelling of 11101143205 in words is "eleven billion, one hundred one million, one hundred forty-three thousand, two hundred five".