131333311111 has 2 divisors, whose sum is σ = 131333311112. Its totient is φ = 131333311110.

The previous prime is 131333311099. The next prime is 131333311121. The reversal of 131333311111 is 111113333131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131333311111 - 2²⁷ = 131199093383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333311121) 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, 65666655555 + 65666655556.

It is an arithmetic number, because the mean of its divisors is an integer number (65666655556).

Almost surely, 2^131333311111 is an apocalyptic number.

131333311111 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333311111 is an equidigital number, since it uses as much as digits as its factorization.

131333311111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 243, while the sum is 22.

Adding to 131333311111 its reverse (111113333131), we get a palindrome (242446644242).

The spelling of 131333311111 in words is "one hundred thirty-one billion, three hundred thirty-three million, three hundred eleven thousand, one hundred eleven".