1123536568 has 64 divisors (see below), whose sum is σ = 2740677120. Its totient is φ = 418704000.

The previous prime is 1123536541. The next prime is 1123536581. The reversal of 1123536568 is 8656353211.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1123536568.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25483 + ... + 53818.

It is an arithmetic number, because the mean of its divisors is an integer number (42823080).

Almost surely, 2^1123536568 is an apocalyptic number.

It is an amenable number.

1123536568 is an abundant number, since it is smaller than the sum of its proper divisors (1617140552).

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

1123536568 is a wasteful number, since it uses less digits than its factorization.

1123536568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79348 (or 79344 counting only the distinct ones).

The product of its digits is 129600, while the sum is 40.

The square root of 1123536568 is about 33519.1970070883. The cubic root of 1123536568 is about 1039.5907438048.

Adding to 1123536568 its reverse (8656353211), we get a palindrome (9779889779).

The spelling of 1123536568 in words is "one billion, one hundred twenty-three million, five hundred thirty-six thousand, five hundred sixty-eight".