133210331 has 2 divisors, whose sum is σ = 133210332. Its totient is φ = 133210330.

The previous prime is 133210313. The next prime is 133210333. The reversal of 133210331 is 133012331.

Together with previous prime (133210313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133210331 - 2²⁶ = 66101467 is a prime.

It is a super-2 number, since 2×133210331² = 35489984570259122, which contains 22 as substring.

Together with 133210333, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (133210333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66605165 + 66605166.

It is an arithmetic number, because the mean of its divisors is an integer number (66605166).

Almost surely, 2^133210331 is an apocalyptic number.

133210331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133210331 is an equidigital number, since it uses as much as digits as its factorization.

133210331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 133210331 is about 11541.6779975877. The cubic root of 133210331 is about 510.7158101825.

Adding to 133210331 its reverse (133012331), we get a palindrome (266222662).

The spelling of 133210331 in words is "one hundred thirty-three million, two hundred ten thousand, three hundred thirty-one".