21110230100317 has 2 divisors, whose sum is σ = 21110230100318. Its totient is φ = 21110230100316.

The previous prime is 21110230100263. The next prime is 21110230100357. The reversal of 21110230100317 is 71300103201112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21012515091481 + 97715008836 = 4583941^2 + 312594^2 .

It is a cyclic number.

It is not a de Polignac number, because 21110230100317 - 2⁷ = 21110230100189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21110230100357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555115050158 + 10555115050159.

It is an arithmetic number, because the mean of its divisors is an integer number (10555115050159).

Almost surely, 2^{21110230100317} is an apocalyptic number.

It is an amenable number.

21110230100317 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110230100317 is an equidigital number, since it uses as much as digits as its factorization.

21110230100317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 21110230100317 its reverse (71300103201112), we get a palindrome (92410333301429).

The spelling of 21110230100317 in words is "twenty-one trillion, one hundred ten billion, two hundred thirty million, one hundred thousand, three hundred seventeen".