204402310100 has 36 divisors (see below), whose sum is σ = 469644370524. Its totient is φ = 76951457280.

The previous prime is 204402310093. The next prime is 204402310121. The reversal of 204402310100 is 1013204402.

It can be written as a sum of positive squares in 6 ways, for example, as 27879648784 + 176522661316 = 166972^2 + 420146^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60116627 + ... + 60120026.

It is an arithmetic number, because the mean of its divisors is an integer number (13045676959).

Almost surely, 2^204402310100 is an apocalyptic number.

204402310100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204402310100 is an abundant number, since it is smaller than the sum of its proper divisors (265242060424).

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

204402310100 is a wasteful number, since it uses less digits than its factorization.

204402310100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120236684 (or 120236677 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 204402310100 its reverse (1013204402), we get a palindrome (205415514502).

The spelling of 204402310100 in words is "two hundred four billion, four hundred two million, three hundred ten thousand, one hundred".