30213313421 has 2 divisors, whose sum is σ = 30213313422. Its totient is φ = 30213313420.

The previous prime is 30213313387. The next prime is 30213313447. The reversal of 30213313421 is 12431331203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24096352900 + 6116960521 = 155230^2 + 78211^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30213313421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213313621) 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, 15106656710 + 15106656711.

It is an arithmetic number, because the mean of its divisors is an integer number (15106656711).

Almost surely, 2^30213313421 is an apocalyptic number.

It is an amenable number.

30213313421 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213313421 is an equidigital number, since it uses as much as digits as its factorization.

30213313421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30213313421 its reverse (12431331203), we get a palindrome (42644644624).

The spelling of 30213313421 in words is "thirty billion, two hundred thirteen million, three hundred thirteen thousand, four hundred twenty-one".