11423122111 has 8 divisors (see below), whose sum is σ = 11441818080. Its totient is φ = 11404442112.

The previous prime is 11423122099. The next prime is 11423122121. The reversal of 11423122111 is 11122132411.

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 11423122111 - 2⁹ = 11423121599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11423122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2764495 + ... + 2768623.

It is an arithmetic number, because the mean of its divisors is an integer number (1430227260).

Almost surely, 2^11423122111 is an apocalyptic number.

11423122111 is a deficient number, since it is larger than the sum of its proper divisors (18695969).

11423122111 is an equidigital number, since it uses as much as digits as its factorization.

11423122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7985.

The product of its digits is 96, while the sum is 19.

Adding to 11423122111 its reverse (11122132411), we get a palindrome (22545254522).

The spelling of 11423122111 in words is "eleven billion, four hundred twenty-three million, one hundred twenty-two thousand, one hundred eleven".