30331012073 has 2 divisors, whose sum is σ = 30331012074. Its totient is φ = 30331012072.

The previous prime is 30331012057. The next prime is 30331012097. The reversal of 30331012073 is 37021013303.

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., 20575894249 + 9755117824 = 143443^2 + 98768^2 .

It is a cyclic number.

It is not a de Polignac number, because 30331012073 - 2⁴ = 30331012057 is a prime.

It is not a weakly prime, because it can be changed into another prime (30331012373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15165506036 + 15165506037.

It is an arithmetic number, because the mean of its divisors is an integer number (15165506037).

Almost surely, 2^30331012073 is an apocalyptic number.

It is an amenable number.

30331012073 is a deficient number, since it is larger than the sum of its proper divisors (1).

30331012073 is an equidigital number, since it uses as much as digits as its factorization.

30331012073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 23.

Adding to 30331012073 its reverse (37021013303), we get a palindrome (67352025376).

The spelling of 30331012073 in words is "thirty billion, three hundred thirty-one million, twelve thousand, seventy-three".