2100320206 has 4 divisors (see below), whose sum is σ = 3150480312. Its totient is φ = 1050160102.

The previous prime is 2100320191. The next prime is 2100320213. The reversal of 2100320206 is 6020230012.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×2100320206² = 8822689935463764872, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2100320206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525080050 + ... + 525080053.

It is an arithmetic number, because the mean of its divisors is an integer number (787620078).

Almost surely, 2^2100320206 is an apocalyptic number.

2100320206 is a deficient number, since it is larger than the sum of its proper divisors (1050160106).

2100320206 is a wasteful number, since it uses less digits than its factorization.

2100320206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050160105.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2100320206 is about 45829.2505502763. The cubic root of 2100320206 is about 1280.6442488435.

Adding to 2100320206 its reverse (6020230012), we get a palindrome (8120550218).

It can be divided in two parts, 21003 and 20206, that added together give a square (41209 = 203²).

The spelling of 2100320206 in words is "two billion, one hundred million, three hundred twenty thousand, two hundred six".