2111309423213 has 2 divisors, whose sum is σ = 2111309423214. Its totient is φ = 2111309423212.

The previous prime is 2111309423137. The next prime is 2111309423233. The reversal of 2111309423213 is 3123249031112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1939173221764 + 172136201449 = 1392542^2 + 414893^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111309423213 - 2³⁶ = 2042589946477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111309423213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111309423233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055654711606 + 1055654711607.

It is an arithmetic number, because the mean of its divisors is an integer number (1055654711607).

Almost surely, 2^{2111309423213} is an apocalyptic number.

It is an amenable number.

2111309423213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111309423213 is an equidigital number, since it uses as much as digits as its factorization.

2111309423213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 2111309423213 in words is "two trillion, one hundred eleven billion, three hundred nine million, four hundred twenty-three thousand, two hundred thirteen".