11123143321151 has 4 divisors (see below), whose sum is σ = 11777445869472. Its totient is φ = 10468840772832.

The previous prime is 11123143321127. The next prime is 11123143321229. The reversal of 11123143321151 is 15112334132111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123143321151 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 (11123143321051) 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, 327151274135 + ... + 327151274168.

It is an arithmetic number, because the mean of its divisors is an integer number (2944361467368).

Almost surely, 2^{11123143321151} is an apocalyptic number.

11123143321151 is a deficient number, since it is larger than the sum of its proper divisors (654302548321).

11123143321151 is an equidigital number, since it uses as much as digits as its factorization.

11123143321151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654302548320.

The product of its digits is 2160, while the sum is 29.

Adding to 11123143321151 its reverse (15112334132111), we get a palindrome (26235477453262).

The spelling of 11123143321151 in words is "eleven trillion, one hundred twenty-three billion, one hundred forty-three million, three hundred twenty-one thousand, one hundred fifty-one".