30534311321 has 2 divisors, whose sum is σ = 30534311322. Its totient is φ = 30534311320.

The previous prime is 30534311243. The next prime is 30534311329. The reversal of 30534311321 is 12311343503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22979224921 + 7555086400 = 151589^2 + 86920^2 .

It is a cyclic number.

It is not a de Polignac number, because 30534311321 - 2¹⁸ = 30534049177 is a prime.

It is not a weakly prime, because it can be changed into another prime (30534311329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15267155660 + 15267155661.

It is an arithmetic number, because the mean of its divisors is an integer number (15267155661).

Almost surely, 2^30534311321 is an apocalyptic number.

It is an amenable number.

30534311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30534311321 is an equidigital number, since it uses as much as digits as its factorization.

30534311321 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 26.

Adding to 30534311321 its reverse (12311343503), we get a palindrome (42845654824).

The spelling of 30534311321 in words is "thirty billion, five hundred thirty-four million, three hundred eleven thousand, three hundred twenty-one".