11101051011 has 16 divisors (see below), whose sum is σ = 15157650816. Its totient is φ = 7222849536.

The previous prime is 11101050997. The next prime is 11101051021. The reversal of 11101051011 is 11015010111.

It is a happy number.

It is not a de Polignac number, because 11101051011 - 2¹⁴ = 11101034627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11101051021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131971 + ... + 199043.

It is an arithmetic number, because the mean of its divisors is an integer number (947353176).

Almost surely, 2^11101051011 is an apocalyptic number.

11101051011 is a deficient number, since it is larger than the sum of its proper divisors (4056599805).

11101051011 is a wasteful number, since it uses less digits than its factorization.

11101051011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68402.

The product of its (nonzero) digits is 5, while the sum is 12.

Adding to 11101051011 its reverse (11015010111), we get a palindrome (22116061122).

The spelling of 11101051011 in words is "eleven billion, one hundred one million, fifty-one thousand, eleven".