21310130183 has 2 divisors, whose sum is σ = 21310130184. Its totient is φ = 21310130182.

The previous prime is 21310130161. The next prime is 21310130239. The reversal of 21310130183 is 38103101312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21310130183 - 2¹² = 21310126087 is a prime.

It is a super-2 number, since 2×21310130183² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21310130383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10655065091 + 10655065092.

It is an arithmetic number, because the mean of its divisors is an integer number (10655065092).

Almost surely, 2^21310130183 is an apocalyptic number.

21310130183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21310130183 is an equidigital number, since it uses as much as digits as its factorization.

21310130183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 21310130183 its reverse (38103101312), we get a palindrome (59413231495).

The spelling of 21310130183 in words is "twenty-one billion, three hundred ten million, one hundred thirty thousand, one hundred eighty-three".