11142123122 has 8 divisors (see below), whose sum is σ = 17998814316. Its totient is φ = 5142518352.

The previous prime is 11142123121. The next prime is 11142123163. The reversal of 11142123122 is 22132124111.

11142123122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11018490961 + 123632161 = 104969^2 + 11119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 11142123094 and 11142123103.

It is not an unprimeable number, because it can be changed into a prime (11142123121) 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 3 ways as a sum of consecutive naturals, for example, 214271573 + ... + 214271624.

Almost surely, 2^11142123122 is an apocalyptic number.

11142123122 is a deficient number, since it is larger than the sum of its proper divisors (6856691194).

11142123122 is a wasteful number, since it uses less digits than its factorization.

11142123122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428543212.

The product of its digits is 192, while the sum is 20.

Adding to 11142123122 its reverse (22132124111), we get a palindrome (33274247233).

The spelling of 11142123122 in words is "eleven billion, one hundred forty-two million, one hundred twenty-three thousand, one hundred twenty-two".