21024454152263 has 2 divisors, whose sum is σ = 21024454152264. Its totient is φ = 21024454152262.

The previous prime is 21024454152259. The next prime is 21024454152341. The reversal of 21024454152263 is 36225145442012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21024454152263 - 2² = 21024454152259 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21024454152263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21024454152253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10512227076131 + 10512227076132.

It is an arithmetic number, because the mean of its divisors is an integer number (10512227076132).

Almost surely, 2^{21024454152263} is an apocalyptic number.

21024454152263 is a deficient number, since it is larger than the sum of its proper divisors (1).

21024454152263 is an equidigital number, since it uses as much as digits as its factorization.

21024454152263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 21024454152263 its reverse (36225145442012), we get a palindrome (57249599594275).

The spelling of 21024454152263 in words is "twenty-one trillion, twenty-four billion, four hundred fifty-four million, one hundred fifty-two thousand, two hundred sixty-three".