21102144103301 has 2 divisors, whose sum is σ = 21102144103302. Its totient is φ = 21102144103300.

The previous prime is 21102144103283. The next prime is 21102144103309. The reversal of 21102144103301 is 10330144120112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13447659081025 + 7654485022276 = 3667105^2 + 2766674^2 .

It is a cyclic number.

It is not a de Polignac number, because 21102144103301 - 2³⁸ = 20827266196357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21102144103309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551072051650 + 10551072051651.

It is an arithmetic number, because the mean of its divisors is an integer number (10551072051651).

Almost surely, 2^{21102144103301} is an apocalyptic number.

It is an amenable number.

21102144103301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102144103301 is an equidigital number, since it uses as much as digits as its factorization.

21102144103301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21102144103301 its reverse (10330144120112), we get a palindrome (31432288223413).

The spelling of 21102144103301 in words is "twenty-one trillion, one hundred two billion, one hundred forty-four million, one hundred three thousand, three hundred one".