204513104100 has 144 divisors (see below), whose sum is σ = 606718112000. Its totient is φ = 53160105600.

The previous prime is 204513104071. The next prime is 204513104101. The reversal of 204513104100 is 1401315402.

It is not an unprimeable number, because it can be changed into a prime (204513104101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6421215 + ... + 6452985.

Almost surely, 2^204513104100 is an apocalyptic number.

204513104100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204513104100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303359056000).

204513104100 is an abundant number, since it is smaller than the sum of its proper divisors (402205007900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204513104100 is a wasteful number, since it uses less digits than its factorization.

204513104100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32330 (or 32323 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 204513104100 its reverse (1401315402), we get a palindrome (205914419502).

The spelling of 204513104100 in words is "two hundred four billion, five hundred thirteen million, one hundred four thousand, one hundred".