121340425441139 has 2 divisors, whose sum is σ = 121340425441140. Its totient is φ = 121340425441138.

The previous prime is 121340425441097. The next prime is 121340425441177. The reversal of 121340425441139 is 931144524043121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121340425441139 is a prime.

It is a super-2 number, since 2×121340425441139² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121340425441139.

It is not a weakly prime, because it can be changed into another prime (121340425441199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60670212720569 + 60670212720570.

It is an arithmetic number, because the mean of its divisors is an integer number (60670212720570).

Almost surely, 2^{121340425441139} is an apocalyptic number.

121340425441139 is a deficient number, since it is larger than the sum of its proper divisors (1).

121340425441139 is an equidigital number, since it uses as much as digits as its factorization.

121340425441139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 121340425441139 in words is "one hundred twenty-one trillion, three hundred forty billion, four hundred twenty-five million, four hundred forty-one thousand, one hundred thirty-nine".