203113103222213 has 4 divisors (see below), whose sum is σ = 203451061797228. Its totient is φ = 202775144647200.

The previous prime is 203113103222149. The next prime is 203113103222233. The reversal of 203113103222213 is 312222301311302.

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 94141572264964 + 108971530957249 = 9702658^2 + 10438943^2 .

It is a cyclic number.

It is not a de Polignac number, because 203113103222213 - 2⁶ = 203113103222149 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203113103222233) 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, 168979286606 + ... + 168979287807.

It is an arithmetic number, because the mean of its divisors is an integer number (50862765449307).

Almost surely, 2^{203113103222213} is an apocalyptic number.

It is an amenable number.

203113103222213 is a deficient number, since it is larger than the sum of its proper divisors (337958575015).

203113103222213 is an equidigital number, since it uses as much as digits as its factorization.

203113103222213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337958575014.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 203113103222213 its reverse (312222301311302), we get a palindrome (515335404533515).

The spelling of 203113103222213 in words is "two hundred three trillion, one hundred thirteen billion, one hundred three million, two hundred twenty-two thousand, two hundred thirteen".