1123816876 has 72 divisors (see below), whose sum is σ = 2480302944. Its totient is φ = 436101120.

The previous prime is 1123816871. The next prime is 1123816927. The reversal of 1123816876 is 6786183211.

It is not an unprimeable number, because it can be changed into a prime (1123816871) 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, 248556 + ... + 253036.

It is an arithmetic number, because the mean of its divisors is an integer number (34448652).

Almost surely, 2^1123816876 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 1123816876, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1240151472).

1123816876 is an abundant number, since it is smaller than the sum of its proper divisors (1356486068).

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

1123816876 is a wasteful number, since it uses less digits than its factorization.

1123816876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4571 (or 4556 counting only the distinct ones).

The product of its digits is 96768, while the sum is 43.

The square root of 1123816876 is about 33523.3780517417. The cubic root of 1123816876 is about 1039.6771914796.

The spelling of 1123816876 in words is "one billion, one hundred twenty-three million, eight hundred sixteen thousand, eight hundred seventy-six".