200100011020 has 96 divisors (see below), whose sum is σ = 535015555200. Its totient is φ = 61144602624.

The previous prime is 200100011009. The next prime is 200100011039. The reversal of 200100011020 is 20110001002.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is a junction number, because it is equal to n+sod(n) for n = 200100010994 and 200100011012.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1842825 + ... + 1948384.

It is an arithmetic number, because the mean of its divisors is an integer number (5573078700).

Almost surely, 2^200100011020 is an apocalyptic number.

200100011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200100011020 is an abundant number, since it is smaller than the sum of its proper divisors (334915544180).

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

200100011020 is a wasteful number, since it uses less digits than its factorization.

200100011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791267 (or 3791265 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 200100011020 its reverse (20110001002), we get a palindrome (220210012022).

The spelling of 200100011020 in words is "two hundred billion, one hundred million, eleven thousand, twenty".