1123444445 has 32 divisors (see below), whose sum is σ = 1479772800. Its totient is φ = 815802624.

The previous prime is 1123444423. The next prime is 1123444451. The reversal of 1123444445 is 5444443211.

It is a cyclic number.

It is not a de Polignac number, because 1123444445 - 2¹⁰ = 1123443421 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 213911 + ... + 219099.

It is an arithmetic number, because the mean of its divisors is an integer number (46242900).

Almost surely, 2^1123444445 is an apocalyptic number.

It is an amenable number.

1123444445 is a deficient number, since it is larger than the sum of its proper divisors (356328355).

1123444445 is a wasteful number, since it uses less digits than its factorization.

1123444445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5309.

The product of its digits is 30720, while the sum is 32.

The square root of 1123444445 is about 33517.8227962378. The cubic root of 1123444445 is about 1039.5623297064.

Adding to 1123444445 its reverse (5444443211), we get a palindrome (6567887656).

The spelling of 1123444445 in words is "one billion, one hundred twenty-three million, four hundred forty-four thousand, four hundred forty-five".