10533454321 has 4 divisors (see below), whose sum is σ = 11343720052. Its totient is φ = 9723188592.

The previous prime is 10533454301. The next prime is 10533454343. The reversal of 10533454321 is 12345433501.

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 4243219600 + 6290234721 = 65140^2 + 79311^2 .

It is not a de Polignac number, because 10533454321 - 2¹³ = 10533446129 is a prime.

It is a super-2 number, since 2×10533454321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10533454301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405132846 + ... + 405132871.

It is an arithmetic number, because the mean of its divisors is an integer number (2835930013).

Almost surely, 2^10533454321 is an apocalyptic number.

It is an amenable number.

10533454321 is a deficient number, since it is larger than the sum of its proper divisors (810265731).

10533454321 is an equidigital number, since it uses as much as digits as its factorization.

10533454321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810265730.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 10533454321 its reverse (12345433501), we get a palindrome (22878887822).

The spelling of 10533454321 in words is "ten billion, five hundred thirty-three million, four hundred fifty-four thousand, three hundred twenty-one".