102144403010621 has 2 divisors, whose sum is σ = 102144403010622. Its totient is φ = 102144403010620.

The previous prime is 102144403010609. The next prime is 102144403010651. The reversal of 102144403010621 is 126010304441201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63697334685721 + 38447068324900 = 7981061^2 + 6200570^2 .

It is a cyclic number.

It is not a de Polignac number, because 102144403010621 - 2²⁶ = 102144335901757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102144403010651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51072201505310 + 51072201505311.

It is an arithmetic number, because the mean of its divisors is an integer number (51072201505311).

Almost surely, 2^{102144403010621} is an apocalyptic number.

It is an amenable number.

102144403010621 is a deficient number, since it is larger than the sum of its proper divisors (1).

102144403010621 is an equidigital number, since it uses as much as digits as its factorization.

102144403010621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 102144403010621 its reverse (126010304441201), we get a palindrome (228154707451822).

The spelling of 102144403010621 in words is "one hundred two trillion, one hundred forty-four billion, four hundred three million, ten thousand, six hundred twenty-one".