133231203 has 32 divisors (see below), whose sum is σ = 235392000. Its totient is φ = 72819648.

The previous prime is 133231201. The next prime is 133231207. The reversal of 133231203 is 302132331.

It is not a de Polignac number, because 133231203 - 2¹ = 133231201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133231201) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10978 + ... + 19671.

It is an arithmetic number, because the mean of its divisors is an integer number (7356000).

Almost surely, 2^133231203 is an apocalyptic number.

133231203 is a deficient number, since it is larger than the sum of its proper divisors (102160797).

133231203 is a wasteful number, since it uses less digits than its factorization.

133231203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30688 (or 30682 counting only the distinct ones).

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

The square root of 133231203 is about 11542.5821634503. The cubic root of 133231203 is about 510.7424825474.

Adding to 133231203 its reverse (302132331), we get a palindrome (435363534).

The spelling of 133231203 in words is "one hundred thirty-three million, two hundred thirty-one thousand, two hundred three".