5133212321 has 4 divisors (see below), whose sum is σ = 5203530372. Its totient is φ = 5062894272.

The previous prime is 5133212267. The next prime is 5133212323. The reversal of 5133212321 is 1232123315.

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 2274813025 + 2858399296 = 47695^2 + 53464^2 .

It is a cyclic number.

It is not a de Polignac number, because 5133212321 - 2¹⁴ = 5133195937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5133212323) 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, 35158916 + ... + 35159061.

It is an arithmetic number, because the mean of its divisors is an integer number (1300882593).

Almost surely, 2^5133212321 is an apocalyptic number.

It is an amenable number.

5133212321 is a deficient number, since it is larger than the sum of its proper divisors (70318051).

5133212321 is an equidigital number, since it uses as much as digits as its factorization.

5133212321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70318050.

The product of its digits is 1080, while the sum is 23.

The square root of 5133212321 is about 71646.4396952144. The cubic root of 5133212321 is about 1725.0290349800.

Adding to 5133212321 its reverse (1232123315), we get a palindrome (6365335636).

The spelling of 5133212321 in words is "five billion, one hundred thirty-three million, two hundred twelve thousand, three hundred twenty-one".