11011423212111 has 16 divisors (see below), whose sum is σ = 17766329889024. Its totient is φ = 5922109962624.

The previous prime is 11011423212067. The next prime is 11011423212151. The reversal of 11011423212111 is 11121232411011.

It is not a de Polignac number, because 11011423212111 - 2¹⁵ = 11011423179343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011423212151) 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, 15422161005 + ... + 15422161718.

It is an arithmetic number, because the mean of its divisors is an integer number (1110395618064).

Almost surely, 2^{11011423212111} is an apocalyptic number.

11011423212111 is a deficient number, since it is larger than the sum of its proper divisors (6754906676913).

11011423212111 is a wasteful number, since it uses less digits than its factorization.

11011423212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30844322750.

The product of its (nonzero) digits is 96, while the sum is 21.

Adding to 11011423212111 its reverse (11121232411011), we get a palindrome (22132655623122).

The spelling of 11011423212111 in words is "eleven trillion, eleven billion, four hundred twenty-three million, two hundred twelve thousand, one hundred eleven".