121309114439 has 2 divisors, whose sum is σ = 121309114440. Its totient is φ = 121309114438.

The previous prime is 121309114417. The next prime is 121309114447. The reversal of 121309114439 is 934411903121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121309114439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121309114499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60654557219 + 60654557220.

It is an arithmetic number, because the mean of its divisors is an integer number (60654557220).

Almost surely, 2^121309114439 is an apocalyptic number.

121309114439 is a deficient number, since it is larger than the sum of its proper divisors (1).

121309114439 is an equidigital number, since it uses as much as digits as its factorization.

121309114439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 121309114439 in words is "one hundred twenty-one billion, three hundred nine million, one hundred fourteen thousand, four hundred thirty-nine".