133320331 has 2 divisors, whose sum is σ = 133320332. Its totient is φ = 133320330.

The previous prime is 133320323. The next prime is 133320371. The reversal of 133320331 is 133023331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 133320331 - 2³ = 133320323 is a prime.

It is a super-2 number, since 2×133320331² = 35548621315899122, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133320299 and 133320308.

It is not a weakly prime, because it can be changed into another prime (133320301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660165 + 66660166.

It is an arithmetic number, because the mean of its divisors is an integer number (66660166).

Almost surely, 2^133320331 is an apocalyptic number.

133320331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133320331 is an equidigital number, since it uses as much as digits as its factorization.

133320331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133320331 is about 11546.4423525171. The cubic root of 133320331 is about 510.8563480381.

Adding to 133320331 its reverse (133023331), we get a palindrome (266343662).

The spelling of 133320331 in words is "one hundred thirty-three million, three hundred twenty thousand, three hundred thirty-one".