203121201133 has 8 divisors (see below), whose sum is σ = 224420355648. Its totient is φ = 182861029824.

The previous prime is 203121201119. The next prime is 203121201137. The reversal of 203121201133 is 331102121302.

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 203121201133 - 2³³ = 194531266541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203121201133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203121201137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 259745391 + ... + 259746172.

It is an arithmetic number, because the mean of its divisors is an integer number (28052544456).

Almost surely, 2^203121201133 is an apocalyptic number.

203121201133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

203121201133 is a deficient number, since it is larger than the sum of its proper divisors (21299154515).

203121201133 is a wasteful number, since it uses less digits than its factorization.

203121201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519491603.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203121201133 its reverse (331102121302), we get a palindrome (534223322435).

The spelling of 203121201133 in words is "two hundred three billion, one hundred twenty-one million, two hundred one thousand, one hundred thirty-three".