121758048708011 has 4 divisors (see below), whose sum is σ = 125685727698624. Its totient is φ = 117830369717400.

The previous prime is 121758048708001. The next prime is 121758048708029. The reversal of 121758048708011 is 110807840857121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121758048708011 is a prime.

It is a super-2 number, since 2×121758048708011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121758048708001) 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, 1963839495260 + ... + 1963839495321.

It is an arithmetic number, because the mean of its divisors is an integer number (31421431924656).

Almost surely, 2^{121758048708011} is an apocalyptic number.

121758048708011 is a deficient number, since it is larger than the sum of its proper divisors (3927678990613).

121758048708011 is an equidigital number, since it uses as much as digits as its factorization.

121758048708011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3927678990612.

The product of its (nonzero) digits is 1003520, while the sum is 53.

The spelling of 121758048708011 in words is "one hundred twenty-one trillion, seven hundred fifty-eight billion, forty-eight million, seven hundred eight thousand, eleven".