20441313251 has 2 divisors, whose sum is σ = 20441313252. Its totient is φ = 20441313250.

The previous prime is 20441313241. The next prime is 20441313331. The reversal of 20441313251 is 15231314402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20441313251 - 2¹⁴ = 20441296867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20441313251.

It is not a weakly prime, because it can be changed into another prime (20441313241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10220656625 + 10220656626.

It is an arithmetic number, because the mean of its divisors is an integer number (10220656626).

Almost surely, 2^20441313251 is an apocalyptic number.

20441313251 is a deficient number, since it is larger than the sum of its proper divisors (1).

20441313251 is an equidigital number, since it uses as much as digits as its factorization.

20441313251 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 26.

Adding to 20441313251 its reverse (15231314402), we get a palindrome (35672627653).

The spelling of 20441313251 in words is "twenty billion, four hundred forty-one million, three hundred thirteen thousand, two hundred fifty-one".