2120450533 has 4 divisors (see below), whose sum is σ = 2121065260. Its totient is φ = 2119835808.

The previous prime is 2120450531. The next prime is 2120450557. The reversal of 2120450533 is 3350540212.

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 1140885729 + 979564804 = 33777^2 + 31298^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120450533 - 2¹ = 2120450531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120450498 and 2120450507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120450531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302160 + ... + 309097.

It is an arithmetic number, because the mean of its divisors is an integer number (530266315).

Almost surely, 2^2120450533 is an apocalyptic number.

It is an amenable number.

2120450533 is a deficient number, since it is larger than the sum of its proper divisors (614727).

2120450533 is an equidigital number, since it uses as much as digits as its factorization.

2120450533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 614726.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 2120450533 is about 46048.3499487224. The cubic root of 2120450533 is about 1284.7226526748.

Adding to 2120450533 its reverse (3350540212), we get a palindrome (5470990745).

The spelling of 2120450533 in words is "two billion, one hundred twenty million, four hundred fifty thousand, five hundred thirty-three".