2111022311243 has 2 divisors, whose sum is σ = 2111022311244. Its totient is φ = 2111022311242.

The previous prime is 2111022311201. The next prime is 2111022311261. The reversal of 2111022311243 is 3421132201112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111022311243 - 2³⁰ = 2109948569419 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111022311143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055511155621 + 1055511155622.

It is an arithmetic number, because the mean of its divisors is an integer number (1055511155622).

Almost surely, 2^{2111022311243} is an apocalyptic number.

2111022311243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111022311243 is an equidigital number, since it uses as much as digits as its factorization.

2111022311243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 2111022311243 its reverse (3421132201112), we get a palindrome (5532154512355).

The spelling of 2111022311243 in words is "two trillion, one hundred eleven billion, twenty-two million, three hundred eleven thousand, two hundred forty-three".