1123433304021 has 24 divisors (see below), whose sum is σ = 1918506794880. Its totient is φ = 619825270176.

The previous prime is 1123433303999. The next prime is 1123433304047. The reversal of 1123433304021 is 1204033343211.

It is a happy number.

1123433304021 is a `hidden beast` number, since 1 + 12 + 343 + 3 + 304 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 1123433304021 - 2⁷ = 1123433303893 is a prime.

It is a super-2 number, since 2×1123433304021² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123433304821) 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 23 ways as a sum of consecutive naturals, for example, 307451185 + ... + 307454838.

It is an arithmetic number, because the mean of its divisors is an integer number (79937783120).

Almost surely, 2^{1123433304021} is an apocalyptic number.

It is an amenable number.

1123433304021 is a deficient number, since it is larger than the sum of its proper divisors (795073490859).

1123433304021 is a wasteful number, since it uses less digits than its factorization.

1123433304021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614906065 (or 614906062 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1123433304021 its reverse (1204033343211), we get a palindrome (2327466647232).

The spelling of 1123433304021 in words is "one trillion, one hundred twenty-three billion, four hundred thirty-three million, three hundred four thousand, twenty-one".