121306242104 has 32 divisors (see below), whose sum is σ = 234808934400. Its totient is φ = 58690904160.

The previous prime is 121306242089. The next prime is 121306242107. The reversal of 121306242104 is 401242603121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121306242107) 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, 3793109 + ... + 3824955.

It is an arithmetic number, because the mean of its divisors is an integer number (7337779200).

Almost surely, 2^121306242104 is an apocalyptic number.

It is an amenable number.

121306242104 is a deficient number, since it is larger than the sum of its proper divisors (113502692296).

121306242104 is a wasteful number, since it uses less digits than its factorization.

121306242104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47243 (or 47239 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121306242104 its reverse (401242603121), we get a palindrome (522548845225).

The spelling of 121306242104 in words is "one hundred twenty-one billion, three hundred six million, two hundred forty-two thousand, one hundred four".