21231310030067 has 2 divisors, whose sum is σ = 21231310030068. Its totient is φ = 21231310030066.

The previous prime is 21231310030031. The next prime is 21231310030163. The reversal of 21231310030067 is 76003001313212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21231310030067 - 2⁶ = 21231310030003 is a prime.

It is not a weakly prime, because it can be changed into another prime (21231310030267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615655015033 + 10615655015034.

It is an arithmetic number, because the mean of its divisors is an integer number (10615655015034).

Almost surely, 2^{21231310030067} is an apocalyptic number.

21231310030067 is a deficient number, since it is larger than the sum of its proper divisors (1).

21231310030067 is an equidigital number, since it uses as much as digits as its factorization.

21231310030067 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 21231310030067 its reverse (76003001313212), we get a palindrome (97234311343279).

The spelling of 21231310030067 in words is "twenty-one trillion, two hundred thirty-one billion, three hundred ten million, thirty thousand, sixty-seven".