21110211121319 has 2 divisors, whose sum is σ = 21110211121320. Its totient is φ = 21110211121318.

The previous prime is 21110211121309. The next prime is 21110211121339. The reversal of 21110211121319 is 91312111201112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21110211121319 - 2¹⁶ = 21110211055783 is a prime.

It is a super-2 number, since 2×21110211121319² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21110211121309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555105560659 + 10555105560660.

It is an arithmetic number, because the mean of its divisors is an integer number (10555105560660).

Almost surely, 2^{21110211121319} is an apocalyptic number.

21110211121319 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110211121319 is an equidigital number, since it uses as much as digits as its factorization.

21110211121319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 26.

The spelling of 21110211121319 in words is "twenty-one trillion, one hundred ten billion, two hundred eleven million, one hundred twenty-one thousand, three hundred nineteen".