1123443442 has 8 divisors (see below), whose sum is σ = 1838362032. Its totient is φ = 510656100.

The previous prime is 1123443439. The next prime is 1123443443. The reversal of 1123443442 is 2443443211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1123443442.

It is not an unprimeable number, because it can be changed into a prime (1123443443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25532784 + ... + 25532827.

It is an arithmetic number, because the mean of its divisors is an integer number (229795254).

Almost surely, 2^1123443442 is an apocalyptic number.

1123443442 is a deficient number, since it is larger than the sum of its proper divisors (714918590).

1123443442 is a wasteful number, since it uses less digits than its factorization.

1123443442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51065624.

The product of its digits is 9216, while the sum is 28.

The square root of 1123443442 is about 33517.8078340455. The cubic root of 1123443442 is about 1039.5620203360.

Adding to 1123443442 its reverse (2443443211), we get a palindrome (3566886653).

The spelling of 1123443442 in words is "one billion, one hundred twenty-three million, four hundred forty-three thousand, four hundred forty-two".