1123105548 has 96 divisors (see below), whose sum is σ = 2849817600. Its totient is φ = 343284480.

The previous prime is 1123105547. The next prime is 1123105559. The reversal of 1123105548 is 8455013211.

It is a super-2 number, since 2×1123105548² = 2522732143896760608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123105547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 724278 + ... + 725826.

It is an arithmetic number, because the mean of its divisors is an integer number (29685600).

Almost surely, 2^1123105548 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 1123105548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1424908800).

1123105548 is an abundant number, since it is smaller than the sum of its proper divisors (1726712052).

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

1123105548 is a wasteful number, since it uses less digits than its factorization.

1123105548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 1123105548 is about 33512.7669403766. The cubic root of 1123105548 is about 1039.4577881222.

Adding to 1123105548 its reverse (8455013211), we get a palindrome (9578118759).

The spelling of 1123105548 in words is "one billion, one hundred twenty-three million, one hundred five thousand, five hundred forty-eight".