535123321 has 2 divisors, whose sum is σ = 535123322. Its totient is φ = 535123320.

The previous prime is 535123319. The next prime is 535123367. The reversal of 535123321 is 123321535.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 492351721 + 42771600 = 22189^2 + 6540^2 .

It is a cyclic number.

It is not a de Polignac number, because 535123321 - 2¹ = 535123319 is a prime.

Together with 535123319, it forms a pair of twin primes.

It is equal to p_28105711 and since 535123321 and 28105711 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (535123301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267561660 + 267561661.

It is an arithmetic number, because the mean of its divisors is an integer number (267561661).

Almost surely, 2^535123321 is an apocalyptic number.

It is an amenable number.

535123321 is a deficient number, since it is larger than the sum of its proper divisors (1).

535123321 is an equidigital number, since it uses as much as digits as its factorization.

535123321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2700, while the sum is 25.

The square root of 535123321 is about 23132.7326747187. The cubic root of 535123321 is about 811.8665085261.

Adding to 535123321 its reverse (123321535), we get a palindrome (658444856).

The spelling of 535123321 in words is "five hundred thirty-five million, one hundred twenty-three thousand, three hundred twenty-one".