121758048708071 has 2 divisors, whose sum is σ = 121758048708072. Its totient is φ = 121758048708070.

The previous prime is 121758048708041. The next prime is 121758048708103. The reversal of 121758048708071 is 170807840857121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121758048708071 - 2¹⁸ = 121758048445927 is a prime.

It is a super-2 number, since 2×121758048708071² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121758048708071.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121758048708001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60879024354035 + 60879024354036.

It is an arithmetic number, because the mean of its divisors is an integer number (60879024354036).

Almost surely, 2^{121758048708071} is an apocalyptic number.

121758048708071 is a deficient number, since it is larger than the sum of its proper divisors (1).

121758048708071 is an equidigital number, since it uses as much as digits as its factorization.

121758048708071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7024640, while the sum is 59.

The spelling of 121758048708071 in words is "one hundred twenty-one trillion, seven hundred fifty-eight billion, forty-eight million, seven hundred eight thousand, seventy-one".