203233312133 has 4 divisors (see below), whose sum is σ = 203243406828. Its totient is φ = 203223217440.

The previous prime is 203233312123. The next prime is 203233312141. The reversal of 203233312133 is 331213332302.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 115370274244 + 87863037889 = 339662^2 + 296417^2 .

It is a cyclic number.

It is not a de Polignac number, because 203233312133 - 2¹² = 203233308037 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 (203233312123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5017088 + ... + 5057433.

It is an arithmetic number, because the mean of its divisors is an integer number (50810851707).

Almost surely, 2^203233312133 is an apocalyptic number.

It is an amenable number.

203233312133 is a deficient number, since it is larger than the sum of its proper divisors (10094695).

203233312133 is a wasteful number, since it uses less digits than its factorization.

203233312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094694.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 203233312133 its reverse (331213332302), we get a palindrome (534446644435).

The spelling of 203233312133 in words is "two hundred three billion, two hundred thirty-three million, three hundred twelve thousand, one hundred thirty-three".