20535333245213 has 2 divisors, whose sum is σ = 20535333245214. Its totient is φ = 20535333245212.

The previous prime is 20535333245201. The next prime is 20535333245267. The reversal of 20535333245213 is 31254233353502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20404851911929 + 130481333284 = 4517173^2 + 361222^2 .

It is a cyclic number.

It is not a de Polignac number, because 20535333245213 - 2⁸ = 20535333244957 is a prime.

It is a super-2 number, since 2×20535333245213² (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 (20535333245513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10267666622606 + 10267666622607.

It is an arithmetic number, because the mean of its divisors is an integer number (10267666622607).

Almost surely, 2^{20535333245213} is an apocalyptic number.

It is an amenable number.

20535333245213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20535333245213 is an equidigital number, since it uses as much as digits as its factorization.

20535333245213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972000, while the sum is 41.

Adding to 20535333245213 its reverse (31254233353502), we get a palindrome (51789566598715).

The spelling of 20535333245213 in words is "twenty trillion, five hundred thirty-five billion, three hundred thirty-three million, two hundred forty-five thousand, two hundred thirteen".