11123234442 has 20 divisors (see below), whose sum is σ = 24924284946. Its totient is φ = 3707744760.

The previous prime is 11123234413. The next prime is 11123234477. The reversal of 11123234442 is 24443232111.

It can be written as a sum of positive squares in only one way, i.e., 8948970801 + 2174263641 = 94599^2 + 46629^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

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 9 ways as a sum of consecutive naturals, for example, 34330809 + ... + 34331132.

Almost surely, 2^11123234442 is an apocalyptic number.

11123234442 is an abundant number, since it is smaller than the sum of its proper divisors (13801050504).

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

11123234442 is an equidigital number, since it uses as much as digits as its factorization.

11123234442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68661955 (or 68661946 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 11123234442 its reverse (24443232111), we get a palindrome (35566466553).

It can be divided in two parts, 1112323 and 4442, that added together give a triangular number (1116765 = T₁₄₉₄).

The spelling of 11123234442 in words is "eleven billion, one hundred twenty-three million, two hundred thirty-four thousand, four hundred forty-two".