102021244242347 has 2 divisors, whose sum is σ = 102021244242348. Its totient is φ = 102021244242346.

The previous prime is 102021244242263. The next prime is 102021244242373. The reversal of 102021244242347 is 743242442120201.

It is a strong prime.

It is an emirp because it is prime and its reverse (743242442120201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102021244242347 - 2¹⁸ = 102021243980203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102021244242347.

It is not a weakly prime, because it can be changed into another prime (102021244242377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010622121173 + 51010622121174.

It is an arithmetic number, because the mean of its divisors is an integer number (51010622121174).

Almost surely, 2^{102021244242347} is an apocalyptic number.

102021244242347 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021244242347 is an equidigital number, since it uses as much as digits as its factorization.

102021244242347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172032, while the sum is 38.

Adding to 102021244242347 its reverse (743242442120201), we get a palindrome (845263686362548).

The spelling of 102021244242347 in words is "one hundred two trillion, twenty-one billion, two hundred forty-four million, two hundred forty-two thousand, three hundred forty-seven".