11111440122123 has 32 divisors (see below), whose sum is σ = 16269878280192. Its totient is φ = 6689300436000.

The previous prime is 11111440122121. The next prime is 11111440122143. The reversal of 11111440122123 is 32122104411111.

It is not a de Polignac number, because 11111440122123 - 2¹ = 11111440122121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11111440122093 and 11111440122102.

It is not an unprimeable number, because it can be changed into a prime (11111440122121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155050086 + ... + 155121732.

It is an arithmetic number, because the mean of its divisors is an integer number (508433696256).

Almost surely, 2^{11111440122123} is an apocalyptic number.

11111440122123 is a deficient number, since it is larger than the sum of its proper divisors (5158438158069).

11111440122123 is a wasteful number, since it uses less digits than its factorization.

11111440122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102935.

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

Adding to 11111440122123 its reverse (32122104411111), we get a palindrome (43233544533234).

The spelling of 11111440122123 in words is "eleven trillion, one hundred eleven billion, four hundred forty million, one hundred twenty-two thousand, one hundred twenty-three".