133231003 has 8 divisors (see below), whose sum is σ = 135509760. Its totient is φ = 130963560.

The previous prime is 133230991. The next prime is 133231009. The reversal of 133231003 is 300132331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133231003 - 2⁹ = 133230491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133231009) 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 7 ways as a sum of consecutive naturals, for example, 22876 + ... + 28102.

It is an arithmetic number, because the mean of its divisors is an integer number (16938720).

Almost surely, 2^133231003 is an apocalyptic number.

133231003 is a deficient number, since it is larger than the sum of its proper divisors (2278757).

133231003 is an equidigital number, since it uses as much as digits as its factorization.

133231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5657.

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

The square root of 133231003 is about 11542.5734998743. The cubic root of 133231003 is about 510.7422269803.

Adding to 133231003 its reverse (300132331), we get a palindrome (433363334).

The spelling of 133231003 in words is "one hundred thirty-three million, two hundred thirty-one thousand, three".