203312302311211 has 4 divisors (see below), whose sum is σ = 203312539242000. Its totient is φ = 203312065380424.

The previous prime is 203312302311169. The next prime is 203312302311227. The reversal of 203312302311211 is 112113203213302.

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

It is a cyclic number.

It is not a de Polignac number, because 203312302311211 - 2³⁵ = 203277942572843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203312302315211) 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, 117173536 + ... + 118896013.

It is an arithmetic number, because the mean of its divisors is an integer number (50828134810500).

Almost surely, 2^{203312302311211} is an apocalyptic number.

203312302311211 is a deficient number, since it is larger than the sum of its proper divisors (236930789).

203312302311211 is an equidigital number, since it uses as much as digits as its factorization.

203312302311211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236930788.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203312302311211 its reverse (112113203213302), we get a palindrome (315425505524513).

The spelling of 203312302311211 in words is "two hundred three trillion, three hundred twelve billion, three hundred two million, three hundred eleven thousand, two hundred eleven".