30321252593 has 2 divisors, whose sum is σ = 30321252594. Its totient is φ = 30321252592.

The previous prime is 30321252569. The next prime is 30321252631. The reversal of 30321252593 is 39525212303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28213249024 + 2108003569 = 167968^2 + 45913^2 .

It is an emirp because it is prime and its reverse (39525212303) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30321252593 is a prime.

It is not a weakly prime, because it can be changed into another prime (30321252293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15160626296 + 15160626297.

It is an arithmetic number, because the mean of its divisors is an integer number (15160626297).

Almost surely, 2^30321252593 is an apocalyptic number.

It is an amenable number.

30321252593 is a deficient number, since it is larger than the sum of its proper divisors (1).

30321252593 is an equidigital number, since it uses as much as digits as its factorization.

30321252593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 30321252593 its reverse (39525212303), we get a palindrome (69846464896).

The spelling of 30321252593 in words is "thirty billion, three hundred twenty-one million, two hundred fifty-two thousand, five hundred ninety-three".