20242430423213 has 2 divisors, whose sum is σ = 20242430423214. Its totient is φ = 20242430423212.

The previous prime is 20242430423147. The next prime is 20242430423221. The reversal of 20242430423213 is 31232403424202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16379075069449 + 3863355353764 = 4047107^2 + 1965542^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20242430423213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20242430423213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20242430483213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121215211606 + 10121215211607.

It is an arithmetic number, because the mean of its divisors is an integer number (10121215211607).

Almost surely, 2^{20242430423213} is an apocalyptic number.

It is an amenable number.

20242430423213 is a deficient number, since it is larger than the sum of its proper divisors (1).

20242430423213 is an equidigital number, since it uses as much as digits as its factorization.

20242430423213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 20242430423213 its reverse (31232403424202), we get a palindrome (51474833847415).

The spelling of 20242430423213 in words is "twenty trillion, two hundred forty-two billion, four hundred thirty million, four hundred twenty-three thousand, two hundred thirteen".