2100340133 has 4 divisors (see below), whose sum is σ = 2100650700. Its totient is φ = 2100029568.

The previous prime is 2100340111. The next prime is 2100340163. The reversal of 2100340133 is 3310430012.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1508001889 + 592338244 = 38833^2 + 24338^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100340133 - 2⁶ = 2100340069 is a prime.

It is a super-2 number, since 2×2100340133² = 8822857348580915378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100340163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144908 + ... + 158741.

It is an arithmetic number, because the mean of its divisors is an integer number (525162675).

Almost surely, 2^2100340133 is an apocalyptic number.

It is an amenable number.

2100340133 is a deficient number, since it is larger than the sum of its proper divisors (310567).

2100340133 is an equidigital number, since it uses as much as digits as its factorization.

2100340133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310566.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2100340133 is about 45829.4679545814. The cubic root of 2100340133 is about 1280.6482989112.

Adding to 2100340133 its reverse (3310430012), we get a palindrome (5410770145).

The spelling of 2100340133 in words is "two billion, one hundred million, three hundred forty thousand, one hundred thirty-three".