203343043411111 has 4 divisors (see below), whose sum is σ = 203345942625000. Its totient is φ = 203340144197224.

The previous prime is 203343043411093. The next prime is 203343043411133. The reversal of 203343043411111 is 111114340343302.

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 203343043411111 - 2²⁷ = 203342909193383 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 (203343046411111) 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, 1449501736 + ... + 1449642013.

It is an arithmetic number, because the mean of its divisors is an integer number (50836485656250).

Almost surely, 2^{203343043411111} is an apocalyptic number.

203343043411111 is a deficient number, since it is larger than the sum of its proper divisors (2899213889).

203343043411111 is an equidigital number, since it uses as much as digits as its factorization.

203343043411111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2899213888.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 203343043411111 its reverse (111114340343302), we get a palindrome (314457383754413).

The spelling of 203343043411111 in words is "two hundred three trillion, three hundred forty-three billion, forty-three million, four hundred eleven thousand, one hundred eleven".