13353554244421 has 2 divisors, whose sum is σ = 13353554244422. Its totient is φ = 13353554244420.

The previous prime is 13353554244383. The next prime is 13353554244449. The reversal of 13353554244421 is 12444245535331.

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., 9226618876225 + 4126935368196 = 3037535^2 + 2031486^2 .

It is a cyclic number.

It is not a de Polignac number, because 13353554244421 - 2¹⁵ = 13353554211653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13353554241421) 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, 6676777122210 + 6676777122211.

It is an arithmetic number, because the mean of its divisors is an integer number (6676777122211).

Almost surely, 2^{13353554244421} is an apocalyptic number.

It is an amenable number.

13353554244421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13353554244421 is an equidigital number, since it uses as much as digits as its factorization.

13353554244421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456000, while the sum is 46.

Adding to 13353554244421 its reverse (12444245535331), we get a palindrome (25797799779752).

The spelling of 13353554244421 in words is "thirteen trillion, three hundred fifty-three billion, five hundred fifty-four million, two hundred forty-four thousand, four hundred twenty-one".