121334441005 has 16 divisors (see below), whose sum is σ = 147457848384. Its totient is φ = 95831497600.

The previous prime is 121334440957. The next prime is 121334441087. The reversal of 121334441005 is 500144433121.

It is a de Polignac number, because none of the positive numbers 2^k-121334441005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 501417 + ... + 702913.

It is an arithmetic number, because the mean of its divisors is an integer number (9216115524).

Almost surely, 2^121334441005 is an apocalyptic number.

It is an amenable number.

121334441005 is a deficient number, since it is larger than the sum of its proper divisors (26123407379).

121334441005 is a wasteful number, since it uses less digits than its factorization.

121334441005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203036.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 121334441005 its reverse (500144433121), we get a palindrome (621478874126).

The spelling of 121334441005 in words is "one hundred twenty-one billion, three hundred thirty-four million, four hundred forty-one thousand, five".