20412440330213 has 2 divisors, whose sum is σ = 20412440330214. Its totient is φ = 20412440330212.

The previous prime is 20412440330171. The next prime is 20412440330263. The reversal of 20412440330213 is 31203304421402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20178360473089 + 234079857124 = 4492033^2 + 483818^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412440330213 - 2²⁶ = 20412373221349 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20412440330263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206220165106 + 10206220165107.

It is an arithmetic number, because the mean of its divisors is an integer number (10206220165107).

Almost surely, 2^{20412440330213} is an apocalyptic number.

It is an amenable number.

20412440330213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412440330213 is an equidigital number, since it uses as much as digits as its factorization.

20412440330213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20412440330213 its reverse (31203304421402), we get a palindrome (51615744751615).

The spelling of 20412440330213 in words is "twenty trillion, four hundred twelve billion, four hundred forty million, three hundred thirty thousand, two hundred thirteen".