30212420243 has 2 divisors, whose sum is σ = 30212420244. Its totient is φ = 30212420242.

The previous prime is 30212420171. The next prime is 30212420267. The reversal of 30212420243 is 34202421203.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30212420243 is a prime.

It is not a weakly prime, because it can be changed into another prime (30212429243) 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, 15106210121 + 15106210122.

It is an arithmetic number, because the mean of its divisors is an integer number (15106210122).

Almost surely, 2^30212420243 is an apocalyptic number.

30212420243 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212420243 is an equidigital number, since it uses as much as digits as its factorization.

30212420243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 30212420243 its reverse (34202421203), we get a palindrome (64414841446).

The spelling of 30212420243 in words is "thirty billion, two hundred twelve million, four hundred twenty thousand, two hundred forty-three".