203123313303 has 8 divisors (see below), whose sum is σ = 271598312688. Its totient is φ = 135031928064.

The previous prime is 203123313301. The next prime is 203123313311. The reversal of 203123313303 is 303313321302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 203123313303 - 2¹ = 203123313301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123313301) 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, 95902300 + ... + 95904417.

It is an arithmetic number, because the mean of its divisors is an integer number (33949789086).

Almost surely, 2^203123313303 is an apocalyptic number.

203123313303 is a deficient number, since it is larger than the sum of its proper divisors (68474999385).

203123313303 is a wasteful number, since it uses less digits than its factorization.

203123313303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191807073.

The product of its (nonzero) digits is 2916, while the sum is 24.

Adding to 203123313303 its reverse (303313321302), we get a palindrome (506436634605).

The spelling of 203123313303 in words is "two hundred three billion, one hundred twenty-three million, three hundred thirteen thousand, three hundred three".