21102110303311 has 2 divisors, whose sum is σ = 21102110303312. Its totient is φ = 21102110303310.

The previous prime is 21102110303299. The next prime is 21102110303347. The reversal of 21102110303311 is 11330301120112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21102110303311 - 2⁵ = 21102110303279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21102110300311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551055151655 + 10551055151656.

It is an arithmetic number, because the mean of its divisors is an integer number (10551055151656).

Almost surely, 2^{21102110303311} is an apocalyptic number.

21102110303311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21102110303311 is an equidigital number, since it uses as much as digits as its factorization.

21102110303311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21102110303311 its reverse (11330301120112), we get a palindrome (32432411423423).

The spelling of 21102110303311 in words is "twenty-one trillion, one hundred two billion, one hundred ten million, three hundred three thousand, three hundred eleven".