1131311234111 has 2 divisors, whose sum is σ = 1131311234112. Its totient is φ = 1131311234110.

The previous prime is 1131311234093. The next prime is 1131311234129. The reversal of 1131311234111 is 1114321131311.

It is a balanced prime because it is at equal distance from previous prime (1131311234093) and next prime (1131311234129).

It is a cyclic number.

It is not a de Polignac number, because 1131311234111 - 2⁶ = 1131311234047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131311234161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565655617055 + 565655617056.

It is an arithmetic number, because the mean of its divisors is an integer number (565655617056).

Almost surely, 2^{1131311234111} is an apocalyptic number.

1131311234111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131311234111 is an equidigital number, since it uses as much as digits as its factorization.

1131311234111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 23.

Adding to 1131311234111 its reverse (1114321131311), we get a palindrome (2245632365422).

The spelling of 1131311234111 in words is "one trillion, one hundred thirty-one billion, three hundred eleven million, two hundred thirty-four thousand, one hundred eleven".