133030321 has 16 divisors (see below), whose sum is σ = 147585024. Its totient is φ = 119268864.

The previous prime is 133030319. The next prime is 133030327. The reversal of 133030321 is 123030331.

It is a cyclic number.

It is not a de Polignac number, because 133030321 - 2¹ = 133030319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133030295 and 133030304.

It is not an unprimeable number, because it can be changed into a prime (133030327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121840 + ... + 122926.

It is an arithmetic number, because the mean of its divisors is an integer number (9224064).

Almost surely, 2^133030321 is an apocalyptic number.

It is an amenable number.

133030321 is a deficient number, since it is larger than the sum of its proper divisors (14554703).

133030321 is a wasteful number, since it uses less digits than its factorization.

133030321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 133030321 is about 11533.8771018249. The cubic root of 133030321 is about 510.4856593771.

Adding to 133030321 its reverse (123030331), we get a palindrome (256060652).

The spelling of 133030321 in words is "one hundred thirty-three million, thirty thousand, three hundred twenty-one".