121871070719999 has 8 divisors (see below), whose sum is σ = 123985152893952. Its totient is φ = 119772363689560.

The previous prime is 121871070719989. The next prime is 121871070720023. The reversal of 121871070719999 is 999917070178121.

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 121871070719999 - 2⁸ = 121871070719743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121871070719969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3843769889 + ... + 3843801594.

It is an arithmetic number, because the mean of its divisors is an integer number (15498144111744).

Almost surely, 2^{121871070719999} is an apocalyptic number.

121871070719999 is a deficient number, since it is larger than the sum of its proper divisors (2114082173953).

121871070719999 is an equidigital number, since it uses as much as digits as its factorization.

121871070719999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7687571757.

The product of its (nonzero) digits is 36006768, while the sum is 71.

The spelling of 121871070719999 in words is "one hundred twenty-one trillion, eight hundred seventy-one billion, seventy million, seven hundred nineteen thousand, nine hundred ninety-nine".