133112311 has 2 divisors, whose sum is σ = 133112312. Its totient is φ = 133112310.

The previous prime is 133112269. The next prime is 133112341. The reversal of 133112311 is 113211331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133112311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133112341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66556155 + 66556156.

It is an arithmetic number, because the mean of its divisors is an integer number (66556156).

Almost surely, 2^133112311 is an apocalyptic number.

133112311 is a deficient number, since it is larger than the sum of its proper divisors (1).

133112311 is an equidigital number, since it uses as much as digits as its factorization.

133112311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54, while the sum is 16.

The square root of 133112311 is about 11537.4308665318. The cubic root of 133112311 is about 510.5905129752.

Adding to 133112311 its reverse (113211331), we get a palindrome (246323642).

The spelling of 133112311 in words is "one hundred thirty-three million, one hundred twelve thousand, three hundred eleven".