30213023213 has 2 divisors, whose sum is σ = 30213023214. Its totient is φ = 30213023212.

The previous prime is 30213023209. The next prime is 30213023227. The reversal of 30213023213 is 31232031203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21615468484 + 8597554729 = 147022^2 + 92723^2 .

It is a cyclic number.

It is not a de Polignac number, because 30213023213 - 2² = 30213023209 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30213923213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106511606 + 15106511607.

It is an arithmetic number, because the mean of its divisors is an integer number (15106511607).

Almost surely, 2^30213023213 is an apocalyptic number.

It is an amenable number.

30213023213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30213023213 is an equidigital number, since it uses as much as digits as its factorization.

30213023213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 30213023213 its reverse (31232031203), we get a palindrome (61445054416).

The spelling of 30213023213 in words is "thirty billion, two hundred thirteen million, twenty-three thousand, two hundred thirteen".