121751527171 has 2 divisors, whose sum is σ = 121751527172. Its totient is φ = 121751527170.

The previous prime is 121751527099. The next prime is 121751527181. The reversal of 121751527171 is 171725157121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121751527171 - 2¹⁷ = 121751396099 is a prime.

It is not a weakly prime, because it can be changed into another prime (121751527181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60875763585 + 60875763586.

It is an arithmetic number, because the mean of its divisors is an integer number (60875763586).

Almost surely, 2^121751527171 is an apocalyptic number.

121751527171 is a deficient number, since it is larger than the sum of its proper divisors (1).

121751527171 is an equidigital number, since it uses as much as digits as its factorization.

121751527171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34300, while the sum is 40.

The spelling of 121751527171 in words is "one hundred twenty-one billion, seven hundred fifty-one million, five hundred twenty-seven thousand, one hundred seventy-one".