206100120 has 32 divisors (see below), whose sum is σ = 618300720. Its totient is φ = 54960000.

The previous prime is 206100119. The next prime is 206100131. The reversal of 206100120 is 21001602.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 206100096 and 206100105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 858631 + ... + 858870.

Almost surely, 2^206100120 is an apocalyptic number.

206100120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206100120 is an abundant number, since it is smaller than the sum of its proper divisors (412200600).

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

206100120 is a wasteful number, since it uses less digits than its factorization.

206100120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717515 (or 1717511 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 206100120 is about 14356.1875161897. The cubic root of 206100120 is about 590.6897229259.

Adding to 206100120 its reverse (21001602), we get a palindrome (227101722).

The spelling of 206100120 in words is "two hundred six million, one hundred thousand, one hundred twenty".