30556103663213 has 2 divisors, whose sum is σ = 30556103663214. Its totient is φ = 30556103663212.

The previous prime is 30556103663209. The next prime is 30556103663219. The reversal of 30556103663213 is 31236630165503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28800685357129 + 1755418306084 = 5366627^2 + 1324922^2 .

It is a cyclic number.

It is not a de Polignac number, because 30556103663213 - 2² = 30556103663209 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 (30556103663219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15278051831606 + 15278051831607.

It is an arithmetic number, because the mean of its divisors is an integer number (15278051831607).

Almost surely, 2^{30556103663213} is an apocalyptic number.

It is an amenable number.

30556103663213 is a deficient number, since it is larger than the sum of its proper divisors (1).

30556103663213 is an equidigital number, since it uses as much as digits as its factorization.

30556103663213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 44.

The spelling of 30556103663213 in words is "thirty trillion, five hundred fifty-six billion, one hundred three million, six hundred sixty-three thousand, two hundred thirteen".