203111332213 has 4 divisors (see below), whose sum is σ = 203119901920. Its totient is φ = 203102762508.

The previous prime is 203111332183. The next prime is 203111332243. The reversal of 203111332213 is 312233111302.

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 an interprime number because it is at equal distance from previous prime (203111332183) and next prime (203111332243).

It is a cyclic number.

It is not a de Polignac number, because 203111332213 - 2¹³ = 203111324021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203111332243) 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, 4249203 + ... + 4296736.

It is an arithmetic number, because the mean of its divisors is an integer number (50779975480).

Almost surely, 2^203111332213 is an apocalyptic number.

It is an amenable number.

203111332213 is a deficient number, since it is larger than the sum of its proper divisors (8569707).

203111332213 is an equidigital number, since it uses as much as digits as its factorization.

203111332213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8569706.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 203111332213 its reverse (312233111302), we get a palindrome (515344443515).

The spelling of 203111332213 in words is "two hundred three billion, one hundred eleven million, three hundred thirty-two thousand, two hundred thirteen".