204030545111 has 4 divisors (see below), whose sum is σ = 204031596912. Its totient is φ = 204029493312.

The previous prime is 204030545093. The next prime is 204030545129. The reversal of 204030545111 is 111545030402.

204030545111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 an interprime number because it is at equal distance from previous prime (204030545093) and next prime (204030545129).

It is a cyclic number.

It is not a de Polignac number, because 204030545111 - 2²² = 204026350807 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 (204030565111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141050 + ... + 654183.

It is an arithmetic number, because the mean of its divisors is an integer number (51007899228).

Almost surely, 2^204030545111 is an apocalyptic number.

204030545111 is a deficient number, since it is larger than the sum of its proper divisors (1051801).

204030545111 is an equidigital number, since it uses as much as digits as its factorization.

204030545111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051800.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 204030545111 its reverse (111545030402), we get a palindrome (315575575513).

The spelling of 204030545111 in words is "two hundred four billion, thirty million, five hundred forty-five thousand, one hundred eleven".