2100819835 has 8 divisors (see below), whose sum is σ = 2653667280. Its totient is φ = 1592200224.

The previous prime is 2100819823. The next prime is 2100819841. The reversal of 2100819835 is 5389180012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2100819835 - 2⁵ = 2100819803 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2100819794 and 2100819803.

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, 11056852 + ... + 11057041.

It is an arithmetic number, because the mean of its divisors is an integer number (331708410).

Almost surely, 2^2100819835 is an apocalyptic number.

2100819835 is a deficient number, since it is larger than the sum of its proper divisors (552847445).

2100819835 is a wasteful number, since it uses less digits than its factorization.

2100819835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22113917.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 2100819835 is about 45834.7012098912. The cubic root of 2100819835 is about 1280.7457883253.

Adding to 2100819835 its reverse (5389180012), we get a palindrome (7489999847).

The spelling of 2100819835 in words is "two billion, one hundred million, eight hundred nineteen thousand, eight hundred thirty-five".