30703223 has 2 divisors, whose sum is σ = 30703224. Its totient is φ = 30703222.

The previous prime is 30703213. The next prime is 30703249. The reversal of 30703223 is 32230703.

It is a weak prime.

It is an emirp because it is prime and its reverse (32230703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30703223 - 2¹⁶ = 30637687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30703195 and 30703204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30703213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15351611 + 15351612.

It is an arithmetic number, because the mean of its divisors is an integer number (15351612).

Almost surely, 2^30703223 is an apocalyptic number.

30703223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30703223 is an equidigital number, since it uses as much as digits as its factorization.

30703223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756, while the sum is 20.

The square root of 30703223 is about 5541.0489079235. The cubic root of 30703223 is about 313.1323872531.

Adding to 30703223 its reverse (32230703), we get a palindrome (62933926).

The spelling of 30703223 in words is "thirty million, seven hundred three thousand, two hundred twenty-three".