121378763152 has 20 divisors (see below), whose sum is σ = 235534853376. Its totient is φ = 60595575200.

The previous prime is 121378763113. The next prime is 121378763203. The reversal of 121378763152 is 251367873121.

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 in 3 ways as a sum of consecutive naturals, for example, 5852224 + ... + 5872927.

Almost surely, 2^121378763152 is an apocalyptic number.

It is an amenable number.

121378763152 is a deficient number, since it is larger than the sum of its proper divisors (114156090224).

121378763152 is a wasteful number, since it uses less digits than its factorization.

121378763152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11725806 (or 11725800 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The spelling of 121378763152 in words is "one hundred twenty-one billion, three hundred seventy-eight million, seven hundred sixty-three thousand, one hundred fifty-two".