121793380387 has 8 divisors (see below), whose sum is σ = 139195778400. Its totient is φ = 104391818304.

The previous prime is 121793380321. The next prime is 121793380409. The reversal of 121793380387 is 783083397121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121793380387 - 2⁷ = 121793380259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121793380087) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 142689 + ... + 513757.

It is an arithmetic number, because the mean of its divisors is an integer number (17399472300).

Almost surely, 2^121793380387 is an apocalyptic number.

121793380387 is a deficient number, since it is larger than the sum of its proper divisors (17402398013).

121793380387 is an equidigital number, since it uses as much as digits as its factorization.

121793380387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417965.

The product of its (nonzero) digits is 1524096, while the sum is 52.

The spelling of 121793380387 in words is "one hundred twenty-one billion, seven hundred ninety-three million, three hundred eighty thousand, three hundred eighty-seven".