21310132102111 has 2 divisors, whose sum is σ = 21310132102112. Its totient is φ = 21310132102110.

The previous prime is 21310132102099. The next prime is 21310132102139. The reversal of 21310132102111 is 11120123101312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21310132102111 - 2³⁵ = 21275772363743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21310132102151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655066051055 + 10655066051056.

It is an arithmetic number, because the mean of its divisors is an integer number (10655066051056).

Almost surely, 2^{21310132102111} is an apocalyptic number.

21310132102111 is a deficient number, since it is larger than the sum of its proper divisors (1).

21310132102111 is an equidigital number, since it uses as much as digits as its factorization.

21310132102111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 21310132102111 its reverse (11120123101312), we get a palindrome (32430255203423).

The spelling of 21310132102111 in words is "twenty-one trillion, three hundred ten billion, one hundred thirty-two million, one hundred two thousand, one hundred eleven".