21241114253 has 16 divisors (see below), whose sum is σ = 23143137264. Its totient is φ = 19413688320.

The previous prime is 21241114217. The next prime is 21241114283. The reversal of 21241114253 is 35241114212.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 556346569 + 20684767684 = 23587^2 + 143822^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21241114253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21241114283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295301 + ... + 360117.

It is an arithmetic number, because the mean of its divisors is an integer number (1446446079).

Almost surely, 2^21241114253 is an apocalyptic number.

It is an amenable number.

21241114253 is a deficient number, since it is larger than the sum of its proper divisors (1902023011).

21241114253 is a wasteful number, since it uses less digits than its factorization.

21241114253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65392.

The product of its digits is 1920, while the sum is 26.

Adding to 21241114253 its reverse (35241114212), we get a palindrome (56482228465).

The spelling of 21241114253 in words is "twenty-one billion, two hundred forty-one million, one hundred fourteen thousand, two hundred fifty-three".