2100321133 has 2 divisors, whose sum is σ = 2100321134. Its totient is φ = 2100321132.

The previous prime is 2100321131. The next prime is 2100321187. The reversal of 2100321133 is 3311230012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227591369 + 872729764 = 35037^2 + 29542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100321133 - 2¹ = 2100321131 is a prime.

It is a super-2 number, since 2×2100321133² = 8822697723452807378, which contains 22 as substring.

Together with 2100321131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100321131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050160566 + 1050160567.

It is an arithmetic number, because the mean of its divisors is an integer number (1050160567).

Almost surely, 2^2100321133 is an apocalyptic number.

It is an amenable number.

2100321133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100321133 is an equidigital number, since it uses as much as digits as its factorization.

2100321133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2100321133 is about 45829.2606639034. The cubic root of 2100321133 is about 1280.6444372524.

Adding to 2100321133 its reverse (3311230012), we get a palindrome (5411551145).

The spelling of 2100321133 in words is "two billion, one hundred million, three hundred twenty-one thousand, one hundred thirty-three".