1311023332111 has 2 divisors, whose sum is σ = 1311023332112. Its totient is φ = 1311023332110.

The previous prime is 1311023332067. The next prime is 1311023332117. The reversal of 1311023332111 is 1112333201131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1311023332111 - 2⁷ = 1311023331983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311023332117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655511666055 + 655511666056.

It is an arithmetic number, because the mean of its divisors is an integer number (655511666056).

Almost surely, 2^{1311023332111} is an apocalyptic number.

1311023332111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311023332111 is an equidigital number, since it uses as much as digits as its factorization.

1311023332111 is an evil number, because the sum of its binary digits is even.

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

Adding to 1311023332111 its reverse (1112333201131), we get a palindrome (2423356533242).

The spelling of 1311023332111 in words is "one trillion, three hundred eleven billion, twenty-three million, three hundred thirty-two thousand, one hundred eleven".