30455213213 has 2 divisors, whose sum is σ = 30455213214. Its totient is φ = 30455213212.

The previous prime is 30455213209. The next prime is 30455213231. The reversal of 30455213213 is 31231255403.

It is a happy number.

Together with next prime (30455213231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30372821284 + 82391929 = 174278^2 + 9077^2 .

It is a cyclic number.

It is not a de Polignac number, because 30455213213 - 2² = 30455213209 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30455213233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15227606606 + 15227606607.

It is an arithmetic number, because the mean of its divisors is an integer number (15227606607).

Almost surely, 2^30455213213 is an apocalyptic number.

It is an amenable number.

30455213213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30455213213 is an equidigital number, since it uses as much as digits as its factorization.

30455213213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 30455213213 its reverse (31231255403), we get a palindrome (61686468616).

The spelling of 30455213213 in words is "thirty billion, four hundred fifty-five million, two hundred thirteen thousand, two hundred thirteen".