203313211112113 has 4 divisors (see below), whose sum is σ = 203313447009648. Its totient is φ = 203312975214580.

The previous prime is 203313211112093. The next prime is 203313211112117. The reversal of 203313211112113 is 311211112313302.

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-203313211112113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203313211112117) 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, 116651203 + ... + 118381288.

It is an arithmetic number, because the mean of its divisors is an integer number (50828361752412).

Almost surely, 2^{203313211112113} is an apocalyptic number.

It is an amenable number.

203313211112113 is a deficient number, since it is larger than the sum of its proper divisors (235897535).

203313211112113 is an equidigital number, since it uses as much as digits as its factorization.

203313211112113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235897534.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 203313211112113 its reverse (311211112313302), we get a palindrome (514524323425415).

The spelling of 203313211112113 in words is "two hundred three trillion, three hundred thirteen billion, two hundred eleven million, one hundred twelve thousand, one hundred thirteen".