21112141130453 has 2 divisors, whose sum is σ = 21112141130454. Its totient is φ = 21112141130452.

The previous prime is 21112141130419. The next prime is 21112141130467. The reversal of 21112141130453 is 35403114121112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20546339299249 + 565801831204 = 4532807^2 + 752198^2 .

It is a cyclic number.

It is not a de Polignac number, because 21112141130453 - 2²⁶ = 21112074021589 is a prime.

It is a super-2 number, since 2×21112141130453² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21112141135453) 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, 10556070565226 + 10556070565227.

It is an arithmetic number, because the mean of its divisors is an integer number (10556070565227).

Almost surely, 2^{21112141130453} is an apocalyptic number.

It is an amenable number.

21112141130453 is a deficient number, since it is larger than the sum of its proper divisors (1).

21112141130453 is an equidigital number, since it uses as much as digits as its factorization.

21112141130453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 21112141130453 its reverse (35403114121112), we get a palindrome (56515255251565).

The spelling of 21112141130453 in words is "twenty-one trillion, one hundred twelve billion, one hundred forty-one million, one hundred thirty thousand, four hundred fifty-three".