203130120233 has 4 divisors (see below), whose sum is σ = 203376937728. Its totient is φ = 202883302740.

The previous prime is 203130120223. The next prime is 203130120241. The reversal of 203130120233 is 332021031302.

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 203130120233 - 2¹⁸ = 203129858089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203130120223) 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, 123407513 + ... + 123409158.

It is an arithmetic number, because the mean of its divisors is an integer number (50844234432).

Almost surely, 2^203130120233 is an apocalyptic number.

It is an amenable number.

203130120233 is a deficient number, since it is larger than the sum of its proper divisors (246817495).

203130120233 is an equidigital number, since it uses as much as digits as its factorization.

203130120233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246817494.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 203130120233 its reverse (332021031302), we get a palindrome (535151151535).

The spelling of 203130120233 in words is "two hundred three billion, one hundred thirty million, one hundred twenty thousand, two hundred thirty-three".