121752716051 has 4 divisors (see below), whose sum is σ = 125951085600. Its totient is φ = 117554346504.

The previous prime is 121752716023. The next prime is 121752716069. The reversal of 121752716051 is 150617257121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121752716051 - 2¹⁴ = 121752699667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121752715996 and 121752716014.

It is not an unprimeable number, because it can be changed into a prime (121752716011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2099184731 + ... + 2099184788.

It is an arithmetic number, because the mean of its divisors is an integer number (31487771400).

Almost surely, 2^121752716051 is an apocalyptic number.

121752716051 is a deficient number, since it is larger than the sum of its proper divisors (4198369549).

121752716051 is an equidigital number, since it uses as much as digits as its factorization.

121752716051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4198369548.

The product of its (nonzero) digits is 29400, while the sum is 38.

The spelling of 121752716051 in words is "one hundred twenty-one billion, seven hundred fifty-two million, seven hundred sixteen thousand, fifty-one".