20334330413 has 2 divisors, whose sum is σ = 20334330414. Its totient is φ = 20334330412.

The previous prime is 20334330407. The next prime is 20334330421. The reversal of 20334330413 is 31403343302.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12289496164 + 8044834249 = 110858^2 + 89693^2 .

It is a cyclic number.

It is not a de Polignac number, because 20334330413 - 2¹² = 20334326317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20334330013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10167165206 + 10167165207.

It is an arithmetic number, because the mean of its divisors is an integer number (10167165207).

Almost surely, 2^20334330413 is an apocalyptic number.

It is an amenable number.

20334330413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20334330413 is an equidigital number, since it uses as much as digits as its factorization.

20334330413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 20334330413 its reverse (31403343302), we get a palindrome (51737673715).

The spelling of 20334330413 in words is "twenty billion, three hundred thirty-four million, three hundred thirty thousand, four hundred thirteen".