203110311322313 has 4 divisors (see below), whose sum is σ = 203110369993728. Its totient is φ = 203110252650900.

The previous prime is 203110311322273. The next prime is 203110311322441. The reversal of 203110311322313 is 313223113011302.

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 not a de Polignac number, because 203110311322313 - 2¹⁶ = 203110311256777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203110311322913) 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, 23794013 + ... + 31182938.

It is an arithmetic number, because the mean of its divisors is an integer number (50777592498432).

Almost surely, 2^{203110311322313} is an apocalyptic number.

It is an amenable number.

203110311322313 is a deficient number, since it is larger than the sum of its proper divisors (58671415).

203110311322313 is an equidigital number, since it uses as much as digits as its factorization.

203110311322313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58671414.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 203110311322313 its reverse (313223113011302), we get a palindrome (516333424333615).

The spelling of 203110311322313 in words is "two hundred three trillion, one hundred ten billion, three hundred eleven million, three hundred twenty-two thousand, three hundred thirteen".