212302030009 has 2 divisors, whose sum is σ = 212302030010. Its totient is φ = 212302030008.

The previous prime is 212302030001. The next prime is 212302030067. The reversal of 212302030009 is 900030203212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211390291984 + 911738025 = 459772^2 + 30195^2 .

It is a cyclic number.

It is not a de Polignac number, because 212302030009 - 2³ = 212302030001 is a prime.

It is not a weakly prime, because it can be changed into another prime (212302030001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151015004 + 106151015005.

It is an arithmetic number, because the mean of its divisors is an integer number (106151015005).

Almost surely, 2^212302030009 is an apocalyptic number.

It is an amenable number.

212302030009 is a deficient number, since it is larger than the sum of its proper divisors (1).

212302030009 is an equidigital number, since it uses as much as digits as its factorization.

212302030009 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 22.

The spelling of 212302030009 in words is "two hundred twelve billion, three hundred two million, thirty thousand, nine".