121204144339 has 2 divisors, whose sum is σ = 121204144340. Its totient is φ = 121204144338.

The previous prime is 121204144289. The next prime is 121204144357. The reversal of 121204144339 is 933441402121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121204144339 - 2³¹ = 119056660691 is a prime.

It is not a weakly prime, because it can be changed into another prime (121204141339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60602072169 + 60602072170.

It is an arithmetic number, because the mean of its divisors is an integer number (60602072170).

Almost surely, 2^121204144339 is an apocalyptic number.

121204144339 is a deficient number, since it is larger than the sum of its proper divisors (1).

121204144339 is an equidigital number, since it uses as much as digits as its factorization.

121204144339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 121204144339 in words is "one hundred twenty-one billion, two hundred four million, one hundred forty-four thousand, three hundred thirty-nine".