11422420311111 has 4 divisors (see below), whose sum is σ = 15229893748152. Its totient is φ = 7614946874072.

The previous prime is 11422420311109. The next prime is 11422420311139. The reversal of 11422420311111 is 11111302422411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11422420311111 - 2¹ = 11422420311109 is a prime.

It is a super-2 number, since 2×11422420311111² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11422420311101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1903736718516 + ... + 1903736718521.

It is an arithmetic number, because the mean of its divisors is an integer number (3807473437038).

Almost surely, 2^{11422420311111} is an apocalyptic number.

11422420311111 is a deficient number, since it is larger than the sum of its proper divisors (3807473437041).

11422420311111 is an equidigital number, since it uses as much as digits as its factorization.

11422420311111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3807473437040.

The product of its (nonzero) digits is 384, while the sum is 24.

Adding to 11422420311111 its reverse (11111302422411), we get a palindrome (22533722733522).

The spelling of 11422420311111 in words is "eleven trillion, four hundred twenty-two billion, four hundred twenty million, three hundred eleven thousand, one hundred eleven".