30390323773 has 2 divisors, whose sum is σ = 30390323774. Its totient is φ = 30390323772.

The previous prime is 30390323669. The next prime is 30390323809. The reversal of 30390323773 is 37732309303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27485329369 + 2904994404 = 165787^2 + 53898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30390323773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30390323273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15195161886 + 15195161887.

It is an arithmetic number, because the mean of its divisors is an integer number (15195161887).

Almost surely, 2^30390323773 is an apocalyptic number.

It is an amenable number.

30390323773 is a deficient number, since it is larger than the sum of its proper divisors (1).

30390323773 is an equidigital number, since it uses as much as digits as its factorization.

30390323773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 214326, while the sum is 40.

The spelling of 30390323773 in words is "thirty billion, three hundred ninety million, three hundred twenty-three thousand, seven hundred seventy-three".