1323123013111 has 2 divisors, whose sum is σ = 1323123013112. Its totient is φ = 1323123013110.

The previous prime is 1323123013097. The next prime is 1323123013117. The reversal of 1323123013111 is 1113103213231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323123013111 - 2¹³ = 1323123004919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323123013117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661561506555 + 661561506556.

It is an arithmetic number, because the mean of its divisors is an integer number (661561506556).

Almost surely, 2^{1323123013111} is an apocalyptic number.

1323123013111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323123013111 is an equidigital number, since it uses as much as digits as its factorization.

1323123013111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1323123013111 its reverse (1113103213231), we get a palindrome (2436226226342).

The spelling of 1323123013111 in words is "one trillion, three hundred twenty-three billion, one hundred twenty-three million, thirteen thousand, one hundred eleven".