11123143242 has 16 divisors (see below), whose sum is σ = 22514315040. Its totient is φ = 3663042992.

The previous prime is 11123143223. The next prime is 11123143261. The reversal of 11123143242 is 24234132111.

It is an interprime number because it is at equal distance from previous prime (11123143223) and next prime (11123143261).

It is an unprimeable number.

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, 11167317 + ... + 11168312.

It is an arithmetic number, because the mean of its divisors is an integer number (1407144690).

Almost surely, 2^11123143242 is an apocalyptic number.

11123143242 is an abundant number, since it is smaller than the sum of its proper divisors (11391171798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11123143242 is a wasteful number, since it uses less digits than its factorization.

11123143242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22335717.

The product of its digits is 1152, while the sum is 24.

Adding to 11123143242 its reverse (24234132111), we get a palindrome (35357275353).

The spelling of 11123143242 in words is "eleven billion, one hundred twenty-three million, one hundred forty-three thousand, two hundred forty-two".