11123233421 has 16 divisors (see below), whose sum is σ = 11463883200. Its totient is φ = 10786608000.

The previous prime is 11123233409. The next prime is 11123233489. The reversal of 11123233421 is 12433232111.

It is a cyclic number.

It is not a de Polignac number, because 11123233421 - 2⁶ = 11123233357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123233921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3765281 + ... + 3768233.

It is an arithmetic number, because the mean of its divisors is an integer number (716492700).

Almost surely, 2^11123233421 is an apocalyptic number.

It is an amenable number.

11123233421 is a deficient number, since it is larger than the sum of its proper divisors (340649779).

11123233421 is a wasteful number, since it uses less digits than its factorization.

11123233421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3596.

The product of its digits is 864, while the sum is 23.

Adding to 11123233421 its reverse (12433232111), we get a palindrome (23556465532).

The spelling of 11123233421 in words is "eleven billion, one hundred twenty-three million, two hundred thirty-three thousand, four hundred twenty-one".