121312884163451 has 2 divisors, whose sum is σ = 121312884163452. Its totient is φ = 121312884163450.

The previous prime is 121312884163441. The next prime is 121312884163469. The reversal of 121312884163451 is 154361488213121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121312884163451 - 2²⁶ = 121312817054587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121312884163451.

It is not a weakly prime, because it can be changed into another prime (121312884163441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60656442081725 + 60656442081726.

It is an arithmetic number, because the mean of its divisors is an integer number (60656442081726).

Almost surely, 2^{121312884163451} is an apocalyptic number.

121312884163451 is a deficient number, since it is larger than the sum of its proper divisors (1).

121312884163451 is an equidigital number, since it uses as much as digits as its factorization.

121312884163451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1105920, while the sum is 50.

The spelling of 121312884163451 in words is "one hundred twenty-one trillion, three hundred twelve billion, eight hundred eighty-four million, one hundred sixty-three thousand, four hundred fifty-one".