204034034511 has 16 divisors (see below), whose sum is σ = 303114643200. Its totient is φ = 135643789944.

The previous prime is 204034034507. The next prime is 204034034599. The reversal of 204034034511 is 115430430402.

It is a happy number.

204034034511 is a `hidden beast` number, since 204 + 0 + 3 + 4 + 0 + 3 + 451 + 1 = 666.

It is not a de Polignac number, because 204034034511 - 2² = 204034034507 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204034030511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10515121 + ... + 10534506.

It is an arithmetic number, because the mean of its divisors is an integer number (18944665200).

Almost surely, 2^204034034511 is an apocalyptic number.

204034034511 is a deficient number, since it is larger than the sum of its proper divisors (99080608689).

204034034511 is a wasteful number, since it uses less digits than its factorization.

204034034511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21049995 (or 21049989 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 204034034511 its reverse (115430430402), we get a palindrome (319464464913).

The spelling of 204034034511 in words is "two hundred four billion, thirty-four million, thirty-four thousand, five hundred eleven".