2121433133 has 2 divisors, whose sum is σ = 2121433134. Its totient is φ = 2121433132.

The previous prime is 2121433121. The next prime is 2121433159. The reversal of 2121433133 is 3313341212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150362889 + 971070244 = 33917^2 + 31162^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121433133 - 2⁴ = 2121433117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2121433099 and 2121433108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121433333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060716566 + 1060716567.

It is an arithmetic number, because the mean of its divisors is an integer number (1060716567).

Almost surely, 2^2121433133 is an apocalyptic number.

It is an amenable number.

2121433133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121433133 is an equidigital number, since it uses as much as digits as its factorization.

2121433133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 23.

The square root of 2121433133 is about 46059.0179335166. The cubic root of 2121433133 is about 1284.9210654678.

Adding to 2121433133 its reverse (3313341212), we get a palindrome (5434774345).

The spelling of 2121433133 in words is "two billion, one hundred twenty-one million, four hundred thirty-three thousand, one hundred thirty-three".