30323213993 has 2 divisors, whose sum is σ = 30323213994. Its totient is φ = 30323213992.

The previous prime is 30323213981. The next prime is 30323214011. The reversal of 30323213993 is 39931232303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30266256784 + 56957209 = 173972^2 + 7547^2 .

It is a cyclic number.

It is not a de Polignac number, because 30323213993 - 2⁸ = 30323213737 is a prime.

It is not a weakly prime, because it can be changed into another prime (30323216993) 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, 15161606996 + 15161606997.

It is an arithmetic number, because the mean of its divisors is an integer number (15161606997).

Almost surely, 2^30323213993 is an apocalyptic number.

It is an amenable number.

30323213993 is a deficient number, since it is larger than the sum of its proper divisors (1).

30323213993 is an equidigital number, since it uses as much as digits as its factorization.

30323213993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 38.

The spelling of 30323213993 in words is "thirty billion, three hundred twenty-three million, two hundred thirteen thousand, nine hundred ninety-three".