2100332861 has 8 divisors (see below), whose sum is σ = 2353198944. Its totient is φ = 1857787920.

The previous prime is 2100332849. The next prime is 2100332873. The reversal of 2100332861 is 1682330012.

It is an interprime number because it is at equal distance from previous prime (2100332849) and next prime (2100332873).

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 2100332861 - 2⁶ = 2100332797 is a prime.

It is a super-2 number, since 2×2100332861² = 8822796253992890642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2100332861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100332821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2579855 + ... + 2580668.

It is an arithmetic number, because the mean of its divisors is an integer number (294149868).

Almost surely, 2^2100332861 is an apocalyptic number.

It is an amenable number.

2100332861 is a deficient number, since it is larger than the sum of its proper divisors (252866083).

2100332861 is a wasteful number, since it uses less digits than its factorization.

2100332861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5160571.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 2100332861 is about 45829.3886169126. The cubic root of 2100332861 is about 1280.6468209148.

Adding to 2100332861 its reverse (1682330012), we get a palindrome (3782662873).

The spelling of 2100332861 in words is "two billion, one hundred million, three hundred thirty-two thousand, eight hundred sixty-one".