1001223133111 has 2 divisors, whose sum is σ = 1001223133112. Its totient is φ = 1001223133110.

The previous prime is 1001223133109. The next prime is 1001223133153. The reversal of 1001223133111 is 1113313221001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1001223133111 - 2¹ = 1001223133109 is a prime.

Together with 1001223133109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1001223133171) 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, 500611566555 + 500611566556.

It is an arithmetic number, because the mean of its divisors is an integer number (500611566556).

Almost surely, 2^{1001223133111} is an apocalyptic number.

1001223133111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001223133111 is an equidigital number, since it uses as much as digits as its factorization.

1001223133111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1001223133111 its reverse (1113313221001), we get a palindrome (2114536354112).

The spelling of 1001223133111 in words is "one trillion, one billion, two hundred twenty-three million, one hundred thirty-three thousand, one hundred eleven".