121444444113 has 8 divisors (see below), whose sum is σ = 161936040576. Its totient is φ = 80957905200.

The previous prime is 121444444091. The next prime is 121444444193. The reversal of 121444444113 is 311444444121.

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

It is not a de Polignac number, because 121444444113 - 2²⁰ = 121443395537 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121444444193) 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 7 ways as a sum of consecutive naturals, for example, 1207998 + ... + 1304663.

It is an arithmetic number, because the mean of its divisors is an integer number (20242005072).

Almost surely, 2^121444444113 is an apocalyptic number.

It is an amenable number.

121444444113 is a deficient number, since it is larger than the sum of its proper divisors (40491596463).

121444444113 is a wasteful number, since it uses less digits than its factorization.

121444444113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2528775.

The product of its digits is 24576, while the sum is 33.

Adding to 121444444113 its reverse (311444444121), we get a palindrome (432888888234).

The spelling of 121444444113 in words is "one hundred twenty-one billion, four hundred forty-four million, four hundred forty-four thousand, one hundred thirteen".