30433343221 has 2 divisors, whose sum is σ = 30433343222. Its totient is φ = 30433343220.

The previous prime is 30433343209. The next prime is 30433343257. The reversal of 30433343221 is 12234333403.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20266654321 + 10166688900 = 142361^2 + 100830^2 .

It is an emirp because it is prime and its reverse (12234333403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30433343221 - 2²³ = 30424954613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30433343221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30433340221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15216671610 + 15216671611.

It is an arithmetic number, because the mean of its divisors is an integer number (15216671611).

Almost surely, 2^30433343221 is an apocalyptic number.

It is an amenable number.

30433343221 is a deficient number, since it is larger than the sum of its proper divisors (1).

30433343221 is an equidigital number, since it uses as much as digits as its factorization.

30433343221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 30433343221 its reverse (12234333403), we get a palindrome (42667676624).

The spelling of 30433343221 in words is "thirty billion, four hundred thirty-three million, three hundred forty-three thousand, two hundred twenty-one".