21102110303347 has 2 divisors, whose sum is σ = 21102110303348. Its totient is φ = 21102110303346.

The previous prime is 21102110303311. The next prime is 21102110303369. The reversal of 21102110303347 is 74330301120112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21102110303347 - 2⁴³ = 12306017281139 is a prime.

It is not a weakly prime, because it can be changed into another prime (21102110303947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551055151673 + 10551055151674.

It is an arithmetic number, because the mean of its divisors is an integer number (10551055151674).

Almost surely, 2^{21102110303347} is an apocalyptic number.

21102110303347 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102110303347 is an equidigital number, since it uses as much as digits as its factorization.

21102110303347 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 21102110303347 its reverse (74330301120112), we get a palindrome (95432411423459).

The spelling of 21102110303347 in words is "twenty-one trillion, one hundred two billion, one hundred ten million, three hundred three thousand, three hundred forty-seven".