203320013011 has 4 divisors (see below), whose sum is σ = 203321192400. Its totient is φ = 203318833624.

The previous prime is 203320012963. The next prime is 203320013047. The reversal of 203320013011 is 110310023302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 203320013011 - 2¹¹ = 203320010963 is a prime.

It is a super-2 number, since 2×203320013011² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203320010011) 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, 275191 + ... + 694528.

It is an arithmetic number, because the mean of its divisors is an integer number (50830298100).

Almost surely, 2^203320013011 is an apocalyptic number.

203320013011 is a deficient number, since it is larger than the sum of its proper divisors (1179389).

203320013011 is an equidigital number, since it uses as much as digits as its factorization.

203320013011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179388.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 203320013011 its reverse (110310023302), we get a palindrome (313630036313).

The spelling of 203320013011 in words is "two hundred three billion, three hundred twenty million, thirteen thousand, eleven".