203311223231013 has 12 divisors (see below), whose sum is σ = 294075717059488. Its totient is φ = 135354376947240.

The previous prime is 203311223230991. The next prime is 203311223231029. The reversal of 203311223231013 is 310132322113302.

203311223231013 is a `hidden beast` number, since 2 + 0 + 3 + 3 + 112 + 232 + 310 + 1 + 3 = 666.

It is not a de Polignac number, because 203311223231013 - 2⁶ = 203311223230949 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 (203311223231713) 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 11 ways as a sum of consecutive naturals, for example, 15536538103 + ... + 15536551188.

Almost surely, 2^{203311223231013} is an apocalyptic number.

It is an amenable number.

203311223231013 is a deficient number, since it is larger than the sum of its proper divisors (90764493828475).

203311223231013 is a wasteful number, since it uses less digits than its factorization.

203311223231013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31073090024 (or 31073090021 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 203311223231013 its reverse (310132322113302), we get a palindrome (513443545344315).

The spelling of 203311223231013 in words is "two hundred three trillion, three hundred eleven billion, two hundred twenty-three million, two hundred thirty-one thousand, thirteen".