1123731443844 has 27 divisors (see below), whose sum is σ = 2840559449637. Its totient is φ = 374575027824.

The previous prime is 1123731443833. The next prime is 1123731443893. The reversal of 1123731443844 is 4483441373211.

The square root of 1123731443844 is 1060062.

It is a perfect power (a square), and thus also a powerful number.

1123731443844 is a `hidden beast` number, since 1 + 1 + 237 + 31 + 4 + 4 + 384 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 756117202500 + 367614241344 = 869550^2 + 606312^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1123731443844.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 6272034 + ... + 6448710.

Almost surely, 2^{1123731443844} is an apocalyptic number.

1123731443844 is the 1060062-nd square number.

It is an amenable number.

1123731443844 is an abundant number, since it is smaller than the sum of its proper divisors (1716828005793).

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

1123731443844 is an frugal number, since it uses more digits than its factorization.

1123731443844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353364 (or 176682 counting only the distinct ones).

The product of its digits is 774144, while the sum is 45.

The spelling of 1123731443844 in words is "one trillion, one hundred twenty-three billion, seven hundred thirty-one million, four hundred forty-three thousand, eight hundred forty-four".