11111233442 has 16 divisors (see below), whose sum is σ = 16988952312. Its totient is φ = 5448343680.

The previous prime is 11111233381. The next prime is 11111233451. The reversal of 11111233442 is 24433211111.

It can be written as a sum of positive squares in 4 ways, for example, as 10961880601 + 149352841 = 104699^2 + 12221^2 .

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, 225758 + ... + 270534.

Almost surely, 2^11111233442 is an apocalyptic number.

11111233442 is a deficient number, since it is larger than the sum of its proper divisors (5877718870).

11111233442 is a wasteful number, since it uses less digits than its factorization.

11111233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47173.

The product of its digits is 576, while the sum is 23.

Adding to 11111233442 its reverse (24433211111), we get a palindrome (35544444553).

The spelling of 11111233442 in words is "eleven billion, one hundred eleven million, two hundred thirty-three thousand, four hundred forty-two".