133120303 has 4 divisors (see below), whose sum is σ = 136216168. Its totient is φ = 130024440.

The previous prime is 133120301. The next prime is 133120321. The reversal of 133120303 is 303021331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303021331 = 181 ⋅1674151.

It is a cyclic number.

It is not a de Polignac number, because 133120303 - 2¹ = 133120301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133120301) 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 3 ways as a sum of consecutive naturals, for example, 1547868 + ... + 1547953.

It is an arithmetic number, because the mean of its divisors is an integer number (34054042).

Almost surely, 2^133120303 is an apocalyptic number.

133120303 is a deficient number, since it is larger than the sum of its proper divisors (3095865).

133120303 is an equidigital number, since it uses as much as digits as its factorization.

133120303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095864.

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

The square root of 133120303 is about 11537.7772122710. Note that the first 3 decimals coincide. The cubic root of 133120303 is about 510.6007313081.

Adding to 133120303 its reverse (303021331), we get a palindrome (436141634).

The spelling of 133120303 in words is "one hundred thirty-three million, one hundred twenty thousand, three hundred three".