121235504 has 40 divisors (see below), whose sum is σ = 266285040. Its totient is φ = 53008128.

The previous prime is 121235497. The next prime is 121235509. The reversal of 121235504 is 405532121.

It is a self number, because there is not a number n which added to its sum of digits gives 121235504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121235509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11387 + ... + 19290.

It is an arithmetic number, because the mean of its divisors is an integer number (6657126).

Almost surely, 2^121235504 is an apocalyptic number.

It is an amenable number.

121235504 is an abundant number, since it is smaller than the sum of its proper divisors (145049536).

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

121235504 is a wasteful number, since it uses less digits than its factorization.

121235504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30717 (or 30711 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 121235504 is about 11010.6995236452. The cubic root of 121235504 is about 494.9294243495.

Adding to 121235504 its reverse (405532121), we get a palindrome (526767625).

The spelling of 121235504 in words is "one hundred twenty-one million, two hundred thirty-five thousand, five hundred four".