204020002010 has 128 divisors (see below), whose sum is σ = 430748720640. Its totient is φ = 68826419200.

The previous prime is 204020001989. The next prime is 204020002027. The reversal of 204020002010 is 10200020402.

It is a super-2 number, since 2×204020002010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11).

It is a junction number, because it is equal to n+sod(n) for n = 204020001982 and 204020002000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17939606 + ... + 17950974.

It is an arithmetic number, because the mean of its divisors is an integer number (3365224380).

Almost surely, 2^204020002010 is an apocalyptic number.

204020002010 is an abundant number, since it is smaller than the sum of its proper divisors (226728718630).

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

204020002010 is a wasteful number, since it uses less digits than its factorization.

204020002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11624.

The product of its (nonzero) digits is 32, while the sum is 11.

Adding to 204020002010 its reverse (10200020402), we get a palindrome (214220022412).

The spelling of 204020002010 in words is "two hundred four billion, twenty million, two thousand, ten".