2111213030009 has 2 divisors, whose sum is σ = 2111213030010. Its totient is φ = 2111213030008.

The previous prime is 2111213029909. The next prime is 2111213030119. The reversal of 2111213030009 is 9000303121112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1396084033600 + 715128996409 = 1181560^2 + 845653^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111213030009 - 2²⁴ = 2111196252793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2111213030809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055606515004 + 1055606515005.

It is an arithmetic number, because the mean of its divisors is an integer number (1055606515005).

Almost surely, 2^{2111213030009} is an apocalyptic number.

It is an amenable number.

2111213030009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111213030009 is an equidigital number, since it uses as much as digits as its factorization.

2111213030009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 2111213030009 in words is "two trillion, one hundred eleven billion, two hundred thirteen million, thirty thousand, nine".