1123434004221 has 16 divisors (see below), whose sum is σ = 1664573377920. Its totient is φ = 748853985600.

The previous prime is 1123434004109. The next prime is 1123434004223. The reversal of 1123434004221 is 1224004343211.

1123434004221 is a `hidden beast` number, since 1 + 1 + 2 + 3 + 434 + 0 + 0 + 4 + 221 = 666.

It is not a de Polignac number, because 1123434004221 - 2¹⁵ = 1123433971453 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123434004223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2631660 + ... + 3028613.

It is an arithmetic number, because the mean of its divisors is an integer number (104035836120).

Almost surely, 2^{1123434004221} is an apocalyptic number.

It is an amenable number.

1123434004221 is a deficient number, since it is larger than the sum of its proper divisors (541139373699).

1123434004221 is an equidigital number, since it uses as much as digits as its factorization.

1123434004221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5667633 (or 5667627 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 1123434004221 its reverse (1224004343211), we get a palindrome (2347438347432).

The spelling of 1123434004221 in words is "one trillion, one hundred twenty-three billion, four hundred thirty-four million, four thousand, two hundred twenty-one".