121040024109 has 8 divisors (see below), whose sum is σ = 161905628352. Its totient is φ = 80433884640.

The previous prime is 121040023991. The next prime is 121040024129. The reversal of 121040024109 is 901420040121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121040024109 - 2²¹ = 121037926957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121040024129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64865104 + ... + 64866969.

It is an arithmetic number, because the mean of its divisors is an integer number (20238203544).

Almost surely, 2^121040024109 is an apocalyptic number.

It is an amenable number.

121040024109 is a deficient number, since it is larger than the sum of its proper divisors (40865604243).

121040024109 is a wasteful number, since it uses less digits than its factorization.

121040024109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129732387.

The product of its (nonzero) digits is 576, while the sum is 24.

The spelling of 121040024109 in words is "one hundred twenty-one billion, forty million, twenty-four thousand, one hundred nine".