1123525044 has 72 divisors (see below), whose sum is σ = 2885151360. Its totient is φ = 368589312.

The previous prime is 1123525003. The next prime is 1123525049. The reversal of 1123525044 is 4405253211.

1123525044 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1123524999 and 1123525017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123525049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1669092 + ... + 1669764.

Almost surely, 2^1123525044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123525044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1442575680).

1123525044 is an abundant number, since it is smaller than the sum of its proper divisors (1761626316).

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

1123525044 is a wasteful number, since it uses less digits than its factorization.

1123525044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1349 (or 1344 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1123525044 is about 33519.0251051548. The cubic root of 1123525044 is about 1039.5871894672.

Adding to 1123525044 its reverse (4405253211), we get a palindrome (5528778255).

The spelling of 1123525044 in words is "one billion, one hundred twenty-three million, five hundred twenty-five thousand, forty-four".