121834664863 has 2 divisors, whose sum is σ = 121834664864. Its totient is φ = 121834664862.

The previous prime is 121834664827. The next prime is 121834664867. The reversal of 121834664863 is 368466438121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121834664863 - 2⁹ = 121834664351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121834664863.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121834664867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60917332431 + 60917332432.

It is an arithmetic number, because the mean of its divisors is an integer number (60917332432).

Almost surely, 2^121834664863 is an apocalyptic number.

121834664863 is a deficient number, since it is larger than the sum of its proper divisors (1).

121834664863 is an equidigital number, since it uses as much as digits as its factorization.

121834664863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3981312, while the sum is 52.

The spelling of 121834664863 in words is "one hundred twenty-one billion, eight hundred thirty-four million, six hundred sixty-four thousand, eight hundred sixty-three".