121353510052171 has 2 divisors, whose sum is σ = 121353510052172. Its totient is φ = 121353510052170.

The previous prime is 121353510052147. The next prime is 121353510052267. The reversal of 121353510052171 is 171250015353121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121353510052171 - 2¹³ = 121353510043979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121353510052171.

It is not a weakly prime, because it can be changed into another prime (121353510056171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60676755026085 + 60676755026086.

It is an arithmetic number, because the mean of its divisors is an integer number (60676755026086).

Almost surely, 2^{121353510052171} is an apocalyptic number.

121353510052171 is a deficient number, since it is larger than the sum of its proper divisors (1).

121353510052171 is an equidigital number, since it uses as much as digits as its factorization.

121353510052171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31500, while the sum is 37.

The spelling of 121353510052171 in words is "one hundred twenty-one trillion, three hundred fifty-three billion, five hundred ten million, fifty-two thousand, one hundred seventy-one".