133204531111 has 2 divisors, whose sum is σ = 133204531112. Its totient is φ = 133204531110.

The previous prime is 133204531091. The next prime is 133204531139. The reversal of 133204531111 is 111135402331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133204531111 - 2⁵ = 133204531079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133204531511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66602265555 + 66602265556.

It is an arithmetic number, because the mean of its divisors is an integer number (66602265556).

Almost surely, 2^133204531111 is an apocalyptic number.

133204531111 is a deficient number, since it is larger than the sum of its proper divisors (1).

133204531111 is an equidigital number, since it uses as much as digits as its factorization.

133204531111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 133204531111 its reverse (111135402331), we get a palindrome (244339933442).

The spelling of 133204531111 in words is "one hundred thirty-three billion, two hundred four million, five hundred thirty-one thousand, one hundred eleven".