203311003322113 has 4 divisors (see below), whose sum is σ = 203622352485588. Its totient is φ = 202999654158640.

The previous prime is 203311003322071. The next prime is 203311003322117. The reversal of 203311003322113 is 311223300113302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35132849726209 + 168178153595904 = 5927297^2 + 12968352^2 .

It is a cyclic number.

It is not a de Polignac number, because 203311003322113 - 2²⁵ = 203310969767681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203311003322117) 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, 155674580758 + ... + 155674582063.

It is an arithmetic number, because the mean of its divisors is an integer number (50905588121397).

Almost surely, 2^{203311003322113} is an apocalyptic number.

It is an amenable number.

203311003322113 is a deficient number, since it is larger than the sum of its proper divisors (311349163475).

203311003322113 is an equidigital number, since it uses as much as digits as its factorization.

203311003322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311349163474.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 203311003322113 its reverse (311223300113302), we get a palindrome (514534303435415).

The spelling of 203311003322113 in words is "two hundred three trillion, three hundred eleven billion, three million, three hundred twenty-two thousand, one hundred thirteen".