204143213404 has 48 divisors (see below), whose sum is σ = 389691717408. Its totient is φ = 93007081728.

The previous prime is 204143213387. The next prime is 204143213429. The reversal of 204143213404 is 404312341402.

It is a super-2 number, since 2×204143213404² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5319774 + ... + 5358010.

It is an arithmetic number, because the mean of its divisors is an integer number (8118577446).

Almost surely, 2^204143213404 is an apocalyptic number.

It is an amenable number.

204143213404 is a deficient number, since it is larger than the sum of its proper divisors (185548504004).

204143213404 is a wasteful number, since it uses less digits than its factorization.

204143213404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39574 (or 39572 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 204143213404 its reverse (404312341402), we get a palindrome (608455554806).

The spelling of 204143213404 in words is "two hundred four billion, one hundred forty-three million, two hundred thirteen thousand, four hundred four".