121223304504 has 48 divisors (see below), whose sum is σ = 329031615120. Its totient is φ = 40319337600.

The previous prime is 121223304473. The next prime is 121223304509. The reversal of 121223304504 is 405403322121.

121223304504 is a `hidden beast` number, since 1 + 2 + 122 + 3 + 30 + 4 + 504 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121223304509) 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 11 ways as a sum of consecutive naturals, for example, 1809172 + ... + 1874979.

It is an arithmetic number, because the mean of its divisors is an integer number (6854825315).

Almost surely, 2^121223304504 is an apocalyptic number.

It is an amenable number.

121223304504 is an abundant number, since it is smaller than the sum of its proper divisors (207808310616).

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

121223304504 is a wasteful number, since it uses less digits than its factorization.

121223304504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684620 (or 3684613 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 121223304504 its reverse (405403322121), we get a palindrome (526626626625).

The spelling of 121223304504 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred four thousand, five hundred four".