203223112100013 has 4 divisors (see below), whose sum is σ = 270964149466688. Its totient is φ = 135482074733340.

The previous prime is 203223112099963. The next prime is 203223112100017. The reversal of 203223112100013 is 310001211322302.

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 not a de Polignac number, because 203223112100013 - 2⁶ = 203223112099949 is a prime.

It is a super-3 number, since 3×203223112100013³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203223112100017) 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, 33870518683333 + ... + 33870518683338.

It is an arithmetic number, because the mean of its divisors is an integer number (67741037366672).

Almost surely, 2^{203223112100013} is an apocalyptic number.

It is an amenable number.

203223112100013 is a deficient number, since it is larger than the sum of its proper divisors (67741037366675).

203223112100013 is an equidigital number, since it uses as much as digits as its factorization.

203223112100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67741037366674.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 203223112100013 its reverse (310001211322302), we get a palindrome (513224323422315).

The spelling of 203223112100013 in words is "two hundred three trillion, two hundred twenty-three billion, one hundred twelve million, one hundred thousand, thirteen".