203311220012213 has 4 divisors (see below), whose sum is σ = 203314999717248. Its totient is φ = 203307440307180.

The previous prime is 203311220012207. The next prime is 203311220012249. The reversal of 203311220012213 is 312210022113302.

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 203311220012213 - 2¹⁰ = 203311220011189 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 (203311220012413) 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, 1889771831 + ... + 1889879412.

It is an arithmetic number, because the mean of its divisors is an integer number (50828749929312).

Almost surely, 2^{203311220012213} is an apocalyptic number.

It is an amenable number.

203311220012213 is a deficient number, since it is larger than the sum of its proper divisors (3779705035).

203311220012213 is an equidigital number, since it uses as much as digits as its factorization.

203311220012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3779705034.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 203311220012213 its reverse (312210022113302), we get a palindrome (515521242125515).

The spelling of 203311220012213 in words is "two hundred three trillion, three hundred eleven billion, two hundred twenty million, twelve thousand, two hundred thirteen".