20113030211243 has 2 divisors, whose sum is σ = 20113030211244. Its totient is φ = 20113030211242.

The previous prime is 20113030211237. The next prime is 20113030211251. The reversal of 20113030211243 is 34211203031102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20113030211243 - 2²⁴ = 20113013434027 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (20113030241243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056515105621 + 10056515105622.

It is an arithmetic number, because the mean of its divisors is an integer number (10056515105622).

Almost surely, 2^{20113030211243} is an apocalyptic number.

20113030211243 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113030211243 is an equidigital number, since it uses as much as digits as its factorization.

20113030211243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 20113030211243 its reverse (34211203031102), we get a palindrome (54324233242345).

The spelling of 20113030211243 in words is "twenty trillion, one hundred thirteen billion, thirty million, two hundred eleven thousand, two hundred forty-three".