133321203 has 6 divisors (see below), whose sum is σ = 192575084. Its totient is φ = 88880796.

The previous prime is 133321193. The next prime is 133321211. The reversal of 133321203 is 302123331.

It is not a de Polignac number, because 133321203 - 2⁸ = 133320947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133321283) 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 5 ways as a sum of consecutive naturals, for example, 7406725 + ... + 7406742.

Almost surely, 2^133321203 is an apocalyptic number.

133321203 is a deficient number, since it is larger than the sum of its proper divisors (59253881).

133321203 is a wasteful number, since it uses less digits than its factorization.

133321203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14813473 (or 14813470 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133321203 is about 11546.4801130041. The cubic root of 133321203 is about 510.8574618111.

Adding to 133321203 its reverse (302123331), we get a palindrome (435444534).

It can be divided in two parts, 13332 and 1203, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 133321203 in words is "one hundred thirty-three million, three hundred twenty-one thousand, two hundred three".