1123430243044 has 24 divisors (see below), whose sum is σ = 1970473843800. Its totient is φ = 560438968320.

The previous prime is 1123430242931. The next prime is 1123430243069. The reversal of 1123430243044 is 4403420343211.

It can be written as a sum of positive squares in 4 ways, for example, as 124529940544 + 998900302500 = 352888^2 + 999450^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1123430242997 and 1123430243015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3457192 + ... + 3768160.

It is an arithmetic number, because the mean of its divisors is an integer number (82103076825).

Almost surely, 2^{1123430243044} is an apocalyptic number.

It is an amenable number.

1123430243044 is a deficient number, since it is larger than the sum of its proper divisors (847043600756).

1123430243044 is a wasteful number, since it uses less digits than its factorization.

1123430243044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313023 (or 313021 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1123430243044 its reverse (4403420343211), we get a palindrome (5526850586255).

The spelling of 1123430243044 in words is "one trillion, one hundred twenty-three billion, four hundred thirty million, two hundred forty-three thousand, forty-four".