203344411211 has 4 divisors (see below), whose sum is σ = 212185472592. Its totient is φ = 194503349832.

The previous prime is 203344411199. The next prime is 203344411219. The reversal of 203344411211 is 112114443302.

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

It is a de Polignac number, because none of the positive numbers 2^k-203344411211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203344411219) 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, 4420530656 + ... + 4420530701.

It is an arithmetic number, because the mean of its divisors is an integer number (53046368148).

Almost surely, 2^203344411211 is an apocalyptic number.

203344411211 is a deficient number, since it is larger than the sum of its proper divisors (8841061381).

203344411211 is an equidigital number, since it uses as much as digits as its factorization.

203344411211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841061380.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 203344411211 its reverse (112114443302), we get a palindrome (315458854513).

The spelling of 203344411211 in words is "two hundred three billion, three hundred forty-four million, four hundred eleven thousand, two hundred eleven".