133013311 has 2 divisors, whose sum is σ = 133013312. Its totient is φ = 133013310.

The previous prime is 133013267. The next prime is 133013351. The reversal of 133013311 is 113310331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133013311 - 2⁹ = 133012799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133013351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66506655 + 66506656.

It is an arithmetic number, because the mean of its divisors is an integer number (66506656).

Almost surely, 2^133013311 is an apocalyptic number.

133013311 is a deficient number, since it is larger than the sum of its proper divisors (1).

133013311 is an equidigital number, since it uses as much as digits as its factorization.

133013311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 133013311 is about 11533.1396852722. The cubic root of 133013311 is about 510.4639006003.

Adding to 133013311 its reverse (113310331), we get a palindrome (246323642).

It can be divided in two parts, 1330 and 13311, that added together give a palindrome (14641).

The spelling of 133013311 in words is "one hundred thirty-three million, thirteen thousand, three hundred eleven".