21231201130463 has 2 divisors, whose sum is σ = 21231201130464. Its totient is φ = 21231201130462.

The previous prime is 21231201130361. The next prime is 21231201130471. The reversal of 21231201130463 is 36403110213212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21231201130463 - 2²⁰ = 21231200081887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21231201130663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10615600565231 + 10615600565232.

It is an arithmetic number, because the mean of its divisors is an integer number (10615600565232).

Almost surely, 2^{21231201130463} is an apocalyptic number.

21231201130463 is a deficient number, since it is larger than the sum of its proper divisors (1).

21231201130463 is an equidigital number, since it uses as much as digits as its factorization.

21231201130463 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 21231201130463 its reverse (36403110213212), we get a palindrome (57634311343675).

The spelling of 21231201130463 in words is "twenty-one trillion, two hundred thirty-one billion, two hundred one million, one hundred thirty thousand, four hundred sixty-three".