102041323140221 has 2 divisors, whose sum is σ = 102041323140222. Its totient is φ = 102041323140220.

The previous prime is 102041323140217. The next prime is 102041323140277. The reversal of 102041323140221 is 122041323140201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67576850424196 + 34464472716025 = 8220514^2 + 5870645^2 .

It is a cyclic number.

It is not a de Polignac number, because 102041323140221 - 2² = 102041323140217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102041323140121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51020661570110 + 51020661570111.

It is an arithmetic number, because the mean of its divisors is an integer number (51020661570111).

Almost surely, 2^{102041323140221} is an apocalyptic number.

It is an amenable number.

102041323140221 is a deficient number, since it is larger than the sum of its proper divisors (1).

102041323140221 is an equidigital number, since it uses as much as digits as its factorization.

102041323140221 is an evil number, because the sum of its binary digits is even.

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

Adding to 102041323140221 its reverse (122041323140201), we get a palindrome (224082646280422).

The spelling of 102041323140221 in words is "one hundred two trillion, forty-one billion, three hundred twenty-three million, one hundred forty thousand, two hundred twenty-one".