121443201413 has 2 divisors, whose sum is σ = 121443201414. Its totient is φ = 121443201412.

The previous prime is 121443201401. The next prime is 121443201443. The reversal of 121443201413 is 314102344121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120092050849 + 1351150564 = 346543^2 + 36758^2 .

It is a cyclic number.

It is not a de Polignac number, because 121443201413 - 2⁶ = 121443201349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121443201443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60721600706 + 60721600707.

It is an arithmetic number, because the mean of its divisors is an integer number (60721600707).

Almost surely, 2^121443201413 is an apocalyptic number.

It is an amenable number.

121443201413 is a deficient number, since it is larger than the sum of its proper divisors (1).

121443201413 is an equidigital number, since it uses as much as digits as its factorization.

121443201413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 121443201413 its reverse (314102344121), we get a palindrome (435545545534).

The spelling of 121443201413 in words is "one hundred twenty-one billion, four hundred forty-three million, two hundred one thousand, four hundred thirteen".