1123223423242 has 4 divisors (see below), whose sum is σ = 1684835134866. Its totient is φ = 561611711620.

The previous prime is 1123223423227. The next prime is 1123223423321. The reversal of 1123223423242 is 2423243223211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1122923821761 + 299601481 = 1059681^2 + 17309^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280805855809 + ... + 280805855812.

Almost surely, 2^{1123223423242} is an apocalyptic number.

1123223423242 is a deficient number, since it is larger than the sum of its proper divisors (561611711624).

1123223423242 is an equidigital number, since it uses as much as digits as its factorization.

1123223423242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561611711623.

The product of its digits is 27648, while the sum is 31.

Adding to 1123223423242 its reverse (2423243223211), we get a palindrome (3546466646453).

The spelling of 1123223423242 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-three million, four hundred twenty-three thousand, two hundred forty-two".