30001321331 has 2 divisors, whose sum is σ = 30001321332. Its totient is φ = 30001321330.

The previous prime is 30001321307. The next prime is 30001321403. The reversal of 30001321331 is 13312310003.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30001321331 is a prime.

It is a super-2 number, since 2×30001321331² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (30001321631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000660665 + 15000660666.

It is an arithmetic number, because the mean of its divisors is an integer number (15000660666).

Almost surely, 2^30001321331 is an apocalyptic number.

30001321331 is a deficient number, since it is larger than the sum of its proper divisors (1).

30001321331 is an equidigital number, since it uses as much as digits as its factorization.

30001321331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 30001321331 its reverse (13312310003), we get a palindrome (43313631334).

The spelling of 30001321331 in words is "thirty billion, one million, three hundred twenty-one thousand, three hundred thirty-one".