11123312042 has 8 divisors (see below), whose sum is σ = 16686909156. Its totient is φ = 5561008992.

The previous prime is 11123312023. The next prime is 11123312059. The reversal of 11123312042 is 24021332111.

It can be written as a sum of positive squares in 2 ways, for example, as 10928402521 + 194909521 = 104539^2 + 13961^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 301733 + ... + 336584.

Almost surely, 2^11123312042 is an apocalyptic number.

11123312042 is a deficient number, since it is larger than the sum of its proper divisors (5563597114).

11123312042 is an equidigital number, since it uses as much as digits as its factorization.

11123312042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647032.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11123312042 its reverse (24021332111), we get a palindrome (35144644153).

The spelling of 11123312042 in words is "eleven billion, one hundred twenty-three million, three hundred twelve thousand, forty-two".