30213243 has 10 divisors (see below), whose sum is σ = 45133484. Its totient is φ = 20142108.

The previous prime is 30213217. The next prime is 30213247. The reversal of 30213243 is 34231203.

It is not a de Polignac number, because 30213243 - 2¹⁰ = 30212219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30213247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 186421 + ... + 186582.

Almost surely, 2^30213243 is an apocalyptic number.

30213243 is a deficient number, since it is larger than the sum of its proper divisors (14920241).

30213243 is an equidigital number, since it uses as much as digits as its factorization.

30213243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373015 (or 373006 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30213243 is about 5496.6574388441. The cubic root of 30213243 is about 311.4577303951.

Adding to 30213243 its reverse (34231203), we get a palindrome (64444446).

The spelling of 30213243 in words is "thirty million, two hundred thirteen thousand, two hundred forty-three".