203012310230053 has 4 divisors (see below), whose sum is σ = 203013523780288. Its totient is φ = 203011096679820.

The previous prime is 203012310230047. The next prime is 203012310230083. The reversal of 203012310230053 is 350032013210302.

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 a de Polignac number, because none of the positive numbers 2^k-203012310230053 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 (203012310230033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606524151 + ... + 606858772.

It is an arithmetic number, because the mean of its divisors is an integer number (50753380945072).

Almost surely, 2^{203012310230053} is an apocalyptic number.

It is an amenable number.

203012310230053 is a deficient number, since it is larger than the sum of its proper divisors (1213550235).

203012310230053 is a wasteful number, since it uses less digits than its factorization.

203012310230053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213550234.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 203012310230053 its reverse (350032013210302), we get a palindrome (553044323440355).

The spelling of 203012310230053 in words is "two hundred three trillion, twelve billion, three hundred ten million, two hundred thirty thousand, fifty-three".