1123818868 has 12 divisors (see below), whose sum is σ = 1968597792. Its totient is φ = 561362360.

The previous prime is 1123818863. The next prime is 1123818901. The reversal of 1123818868 is 8688183211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123818863) 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, 132130 + ... + 140377.

It is an arithmetic number, because the mean of its divisors is an integer number (164049816).

Almost surely, 2^1123818868 is an apocalyptic number.

It is an amenable number.

1123818868 is a deficient number, since it is larger than the sum of its proper divisors (844778924).

1123818868 is a wasteful number, since it uses less digits than its factorization.

1123818868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273542 (or 273540 counting only the distinct ones).

The product of its digits is 147456, while the sum is 46.

The square root of 1123818868 is about 33523.4077623382. The cubic root of 1123818868 is about 1039.6778057658.

The spelling of 1123818868 in words is "one billion, one hundred twenty-three million, eight hundred eighteen thousand, eight hundred sixty-eight".