1123220200811 has 2 divisors, whose sum is σ = 1123220200812. Its totient is φ = 1123220200810.

The previous prime is 1123220200807. The next prime is 1123220200813. The reversal of 1123220200811 is 1180020223211.

It is a strong prime.

It is an emirp because it is prime and its reverse (1180020223211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123220200811 - 2² = 1123220200807 is a prime.

Together with 1123220200813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1123220200813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561610100405 + 561610100406.

It is an arithmetic number, because the mean of its divisors is an integer number (561610100406).

Almost surely, 2^{1123220200811} is an apocalyptic number.

1123220200811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123220200811 is an equidigital number, since it uses as much as digits as its factorization.

1123220200811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The spelling of 1123220200811 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, two hundred thousand, eight hundred eleven".