203230366133 has 4 divisors (see below), whose sum is σ = 206092765728. Its totient is φ = 200367966540.

The previous prime is 203230366127. The next prime is 203230366181. The reversal of 203230366133 is 331663032302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 203230366133 - 2¹² = 203230362037 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 203230366133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203235366133) 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, 1431199691 + ... + 1431199832.

It is an arithmetic number, because the mean of its divisors is an integer number (51523191432).

Almost surely, 2^203230366133 is an apocalyptic number.

It is an amenable number.

203230366133 is a deficient number, since it is larger than the sum of its proper divisors (2862399595).

203230366133 is an equidigital number, since it uses as much as digits as its factorization.

203230366133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2862399594.

The product of its (nonzero) digits is 34992, while the sum is 32.

Adding to 203230366133 its reverse (331663032302), we get a palindrome (534893398435).

The spelling of 203230366133 in words is "two hundred three billion, two hundred thirty million, three hundred sixty-six thousand, one hundred thirty-three".