121683009752 has 8 divisors (see below), whose sum is σ = 228155643300. Its totient is φ = 60841504872.

The previous prime is 121683009739. The next prime is 121683009757. The reversal of 121683009752 is 257900386121.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121683009757) 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 as a sum of consecutive naturals, namely, 7605188102 + ... + 7605188117.

Almost surely, 2^121683009752 is an apocalyptic number.

It is an amenable number.

121683009752 is a deficient number, since it is larger than the sum of its proper divisors (106472633548).

121683009752 is a wasteful number, since it uses less digits than its factorization.

121683009752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15210376225 (or 15210376221 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 121683009752 in words is "one hundred twenty-one billion, six hundred eighty-three million, nine thousand, seven hundred fifty-two".