1123688318800 has 60 divisors (see below), whose sum is σ = 2700840739420. Its totient is φ = 449278940160.

The previous prime is 1123688318791. The next prime is 1123688318801. The reversal of 1123688318800 is 88138863211.

It can be written as a sum of positive squares in 6 ways, for example, as 1088736016 + 1122599582784 = 32996^2 + 1059528^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123688318801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 304636 + ... + 1529764.

Almost surely, 2^{1123688318800} is an apocalyptic number.

1123688318800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123688318800 is an abundant number, since it is smaller than the sum of its proper divisors (1577152420620).

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

1123688318800 is a wasteful number, since it uses less digits than its factorization.

1123688318800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1227440 (or 1227429 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 1123688318800 in words is "one trillion, one hundred twenty-three billion, six hundred eighty-eight million, three hundred eighteen thousand, eight hundred".