2101242133 has 2 divisors, whose sum is σ = 2101242134. Its totient is φ = 2101242132.

The previous prime is 2101242103. The next prime is 2101242181. The reversal of 2101242133 is 3312421012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1421440804 + 679801329 = 37702^2 + 26073^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101242133 - 2⁹ = 2101241621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101242133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101242103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050621066 + 1050621067.

It is an arithmetic number, because the mean of its divisors is an integer number (1050621067).

Almost surely, 2^2101242133 is an apocalyptic number.

It is an amenable number.

2101242133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101242133 is an equidigital number, since it uses as much as digits as its factorization.

2101242133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2101242133 is about 45839.3077281933. The cubic root of 2101242133 is about 1280.8315992929.

Adding to 2101242133 its reverse (3312421012), we get a palindrome (5413663145).

The spelling of 2101242133 in words is "two billion, one hundred one million, two hundred forty-two thousand, one hundred thirty-three".