121303635064 has 8 divisors (see below), whose sum is σ = 227444315760. Its totient is φ = 60651817528.

The previous prime is 121303634993. The next prime is 121303635107. The reversal of 121303635064 is 460536303121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7581477184 + ... + 7581477199.

It is an arithmetic number, because the mean of its divisors is an integer number (28430539470).

Almost surely, 2^121303635064 is an apocalyptic number.

It is an amenable number.

121303635064 is a deficient number, since it is larger than the sum of its proper divisors (106140680696).

121303635064 is a wasteful number, since it uses less digits than its factorization.

121303635064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15162954389 (or 15162954385 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 34.

Adding to 121303635064 its reverse (460536303121), we get a palindrome (581839938185).

The spelling of 121303635064 in words is "one hundred twenty-one billion, three hundred three million, six hundred thirty-five thousand, sixty-four".