20325030613 has 2 divisors, whose sum is σ = 20325030614. Its totient is φ = 20325030612.

The previous prime is 20325030611. The next prime is 20325030617. The reversal of 20325030613 is 31603052302.

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., 12539968324 + 7785062289 = 111982^2 + 88233^2 .

It is a cyclic number.

It is not a de Polignac number, because 20325030613 - 2¹ = 20325030611 is a prime.

Together with 20325030611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20325030611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162515306 + 10162515307.

It is an arithmetic number, because the mean of its divisors is an integer number (10162515307).

Almost surely, 2^20325030613 is an apocalyptic number.

It is an amenable number.

20325030613 is a deficient number, since it is larger than the sum of its proper divisors (1).

20325030613 is an equidigital number, since it uses as much as digits as its factorization.

20325030613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 20325030613 its reverse (31603052302), we get a palindrome (51928082915).

The spelling of 20325030613 in words is "twenty billion, three hundred twenty-five million, thirty thousand, six hundred thirteen".