121302030389 has 2 divisors, whose sum is σ = 121302030390. Its totient is φ = 121302030388.

The previous prime is 121302030379. The next prime is 121302030427. The reversal of 121302030389 is 983030203121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119456640625 + 1845389764 = 345625^2 + 42958^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121302030389 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121302030349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60651015194 + 60651015195.

It is an arithmetic number, because the mean of its divisors is an integer number (60651015195).

Almost surely, 2^121302030389 is an apocalyptic number.

It is an amenable number.

121302030389 is a deficient number, since it is larger than the sum of its proper divisors (1).

121302030389 is an equidigital number, since it uses as much as digits as its factorization.

121302030389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 121302030389 in words is "one hundred twenty-one billion, three hundred two million, thirty thousand, three hundred eighty-nine".