535320232321 has 8 divisors (see below), whose sum is σ = 631529859584. Its totient is φ = 444044432160.

The previous prime is 535320232303. The next prime is 535320232409. The reversal of 535320232321 is 123232023535.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 535320232321 - 2⁷ = 535320232193 is a prime.

It is a super-2 number, since 2×535320232321² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (535320232921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1233456540 + ... + 1233456973.

It is an arithmetic number, because the mean of its divisors is an integer number (78941232448).

Almost surely, 2^535320232321 is an apocalyptic number.

It is an amenable number.

535320232321 is a deficient number, since it is larger than the sum of its proper divisors (96209627263).

535320232321 is a wasteful number, since it uses less digits than its factorization.

535320232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466913551.

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 535320232321 its reverse (123232023535), we get a palindrome (658552255856).

The spelling of 535320232321 in words is "five hundred thirty-five billion, three hundred twenty million, two hundred thirty-two thousand, three hundred twenty-one".