204303343121311 has 4 divisors (see below), whose sum is σ = 233489534995792. Its totient is φ = 175117151246832.

The previous prime is 204303343121303. The next prime is 204303343121347. The reversal of 204303343121311 is 113121343303402.

204303343121311 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

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 204303343121311 - 2³ = 204303343121303 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 (204303343161311) 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, 14593095937230 + ... + 14593095937243.

It is an arithmetic number, because the mean of its divisors is an integer number (58372383748948).

Almost surely, 2^{204303343121311} is an apocalyptic number.

204303343121311 is a deficient number, since it is larger than the sum of its proper divisors (29186191874481).

204303343121311 is an equidigital number, since it uses as much as digits as its factorization.

204303343121311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29186191874480.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 204303343121311 its reverse (113121343303402), we get a palindrome (317424686424713).

The spelling of 204303343121311 in words is "two hundred four trillion, three hundred three billion, three hundred forty-three million, one hundred twenty-one thousand, three hundred eleven".