21214036532753 has 2 divisors, whose sum is σ = 21214036532754. Its totient is φ = 21214036532752.

The previous prime is 21214036532719. The next prime is 21214036532783. The reversal of 21214036532753 is 35723563041212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20133815133184 + 1080221399569 = 4487072^2 + 1039337^2 .

It is a cyclic number.

It is not a de Polignac number, because 21214036532753 - 2⁸ = 21214036532497 is a prime.

It is not a weakly prime, because it can be changed into another prime (21214036532783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10607018266376 + 10607018266377.

It is an arithmetic number, because the mean of its divisors is an integer number (10607018266377).

Almost surely, 2^{21214036532753} is an apocalyptic number.

It is an amenable number.

21214036532753 is a deficient number, since it is larger than the sum of its proper divisors (1).

21214036532753 is an equidigital number, since it uses as much as digits as its factorization.

21214036532753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 907200, while the sum is 44.

Adding to 21214036532753 its reverse (35723563041212), we get a palindrome (56937599573965).

The spelling of 21214036532753 in words is "twenty-one trillion, two hundred fourteen billion, thirty-six million, five hundred thirty-two thousand, seven hundred fifty-three".