102003321302221 has 2 divisors, whose sum is σ = 102003321302222. Its totient is φ = 102003321302220.

The previous prime is 102003321302131. The next prime is 102003321302269. The reversal of 102003321302221 is 122203123300201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94357327612900 + 7645993689321 = 9713770^2 + 2765139^2 .

It is an emirp because it is prime and its reverse (122203123300201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102003321302221 - 2²³ = 102003312913613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102003321302192 and 102003321302201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102003321302621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51001660651110 + 51001660651111.

It is an arithmetic number, because the mean of its divisors is an integer number (51001660651111).

Almost surely, 2^{102003321302221} is an apocalyptic number.

It is an amenable number.

102003321302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102003321302221 is an equidigital number, since it uses as much as digits as its factorization.

102003321302221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 102003321302221 its reverse (122203123300201), we get a palindrome (224206444602422).

The spelling of 102003321302221 in words is "one hundred two trillion, three billion, three hundred twenty-one million, three hundred two thousand, two hundred twenty-one".