30310222233173 has 2 divisors, whose sum is σ = 30310222233174. Its totient is φ = 30310222233172.

The previous prime is 30310222233139. The next prime is 30310222233211. The reversal of 30310222233173 is 37133222201303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30070066369924 + 240155863249 = 5483618^2 + 490057^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30310222233173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30310222233103) 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, 15155111116586 + 15155111116587.

It is an arithmetic number, because the mean of its divisors is an integer number (15155111116587).

Almost surely, 2^{30310222233173} is an apocalyptic number.

It is an amenable number.

30310222233173 is a deficient number, since it is larger than the sum of its proper divisors (1).

30310222233173 is an equidigital number, since it uses as much as digits as its factorization.

30310222233173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 32.

Adding to 30310222233173 its reverse (37133222201303), we get a palindrome (67443444434476).

The spelling of 30310222233173 in words is "thirty trillion, three hundred ten billion, two hundred twenty-two million, two hundred thirty-three thousand, one hundred seventy-three".