102443423055409 has 2 divisors, whose sum is σ = 102443423055410. Its totient is φ = 102443423055408.

The previous prime is 102443423055367. The next prime is 102443423055427. The reversal of 102443423055409 is 904550324344201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102192447104784 + 250975950625 = 10109028^2 + 500975^2 .

It is a cyclic number.

It is not a de Polignac number, because 102443423055409 - 2⁹ = 102443423054897 is a prime.

It is not a weakly prime, because it can be changed into another prime (102443423056409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51221711527704 + 51221711527705.

It is an arithmetic number, because the mean of its divisors is an integer number (51221711527705).

Almost surely, 2^{102443423055409} is an apocalyptic number.

It is an amenable number.

102443423055409 is a deficient number, since it is larger than the sum of its proper divisors (1).

102443423055409 is an equidigital number, since it uses as much as digits as its factorization.

102443423055409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 46.

The spelling of 102443423055409 in words is "one hundred two trillion, four hundred forty-three billion, four hundred twenty-three million, fifty-five thousand, four hundred nine".