131333011111 has 2 divisors, whose sum is σ = 131333011112. Its totient is φ = 131333011110.

The previous prime is 131333011099. The next prime is 131333011177. The reversal of 131333011111 is 111110333131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131333011111 - 2¹¹ = 131333009063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333311111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666505555 + 65666505556.

It is an arithmetic number, because the mean of its divisors is an integer number (65666505556).

Almost surely, 2^131333011111 is an apocalyptic number.

131333011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333011111 is an equidigital number, since it uses as much as digits as its factorization.

131333011111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81, while the sum is 19.

Adding to 131333011111 its reverse (111110333131), we get a palindrome (242443344242).

The spelling of 131333011111 in words is "one hundred thirty-one billion, three hundred thirty-three million, eleven thousand, one hundred eleven".