133212103 has 4 divisors (see below), whose sum is σ = 133241760. Its totient is φ = 133182448.

The previous prime is 133212089. The next prime is 133212127. The reversal of 133212103 is 301212331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133212103 - 2⁵ = 133212071 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 (133212133) 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, 6550 + ... + 17587.

It is an arithmetic number, because the mean of its divisors is an integer number (33310440).

Almost surely, 2^133212103 is an apocalyptic number.

133212103 is a deficient number, since it is larger than the sum of its proper divisors (29657).

133212103 is an equidigital number, since it uses as much as digits as its factorization.

133212103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29656.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 133212103 is about 11541.7547626000. The cubic root of 133212103 is about 510.7180747326.

Adding to 133212103 its reverse (301212331), we get a palindrome (434424434).

The spelling of 133212103 in words is "one hundred thirty-three million, two hundred twelve thousand, one hundred three".