121920273968 has 10 divisors (see below), whose sum is σ = 236220530844. Its totient is φ = 60960136976.

The previous prime is 121920273887. The next prime is 121920273989. The reversal of 121920273968 is 869372029121.

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, 3810008546 + ... + 3810008577.

Almost surely, 2^121920273968 is an apocalyptic number.

It is an amenable number.

121920273968 is a deficient number, since it is larger than the sum of its proper divisors (114300256876).

121920273968 is an equidigital number, since it uses as much as digits as its factorization.

121920273968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620017131 (or 7620017125 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 50.

The spelling of 121920273968 in words is "one hundred twenty-one billion, nine hundred twenty million, two hundred seventy-three thousand, nine hundred sixty-eight".