2100320201686 has 32 divisors (see below), whose sum is σ = 3812537574720. Its totient is φ = 847145389056.

The previous prime is 2100320201657. The next prime is 2100320201687. The reversal of 2100320201686 is 6861020230012.

It is a super-2 number, since 2×2100320201686² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100320201687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4756380 + ... + 5179168.

It is an arithmetic number, because the mean of its divisors is an integer number (119141799210).

Almost surely, 2^{2100320201686} is an apocalyptic number.

2100320201686 is a deficient number, since it is larger than the sum of its proper divisors (1712217373034).

2100320201686 is a wasteful number, since it uses less digits than its factorization.

2100320201686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443688.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 2100320201686 its reverse (6861020230012), we get a palindrome (8961340431698).

The spelling of 2100320201686 in words is "two trillion, one hundred billion, three hundred twenty million, two hundred one thousand, six hundred eighty-six".