121044423 has 16 divisors (see below), whose sum is σ = 172521216. Its totient is φ = 75303360.

The previous prime is 121044409. The next prime is 121044431. The reversal of 121044423 is 324440121.

It is not a de Polignac number, because 121044423 - 2¹⁰ = 121043399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121044423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121044433) 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, 18565 + ... + 24222.

It is an arithmetic number, because the mean of its divisors is an integer number (10782576).

Almost surely, 2^121044423 is an apocalyptic number.

121044423 is a deficient number, since it is larger than the sum of its proper divisors (51476793).

121044423 is a wasteful number, since it uses less digits than its factorization.

121044423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42854.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 121044423 is about 11002.0190419759. The cubic root of 121044423 is about 494.6692658563.

Adding to 121044423 its reverse (324440121), we get a palindrome (445484544).

The spelling of 121044423 in words is "one hundred twenty-one million, forty-four thousand, four hundred twenty-three".