140323324321 has 4 divisors (see below), whose sum is σ = 140869329732. Its totient is φ = 139777318912.

The previous prime is 140323324313. The next prime is 140323324327. The reversal of 140323324321 is 123423323041.

It is a happy number.

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 88765264225 + 51558060096 = 297935^2 + 227064^2 .

It is a cyclic number.

It is not a de Polignac number, because 140323324321 - 2³ = 140323324313 is a prime.

It is a super-2 number, since 2×140323324321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 140323324321.

It is not an unprimeable number, because it can be changed into a prime (140323324327) 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, 273002320 + ... + 273002833.

It is an arithmetic number, because the mean of its divisors is an integer number (35217332433).

Almost surely, 2^140323324321 is an apocalyptic number.

It is an amenable number.

140323324321 is a deficient number, since it is larger than the sum of its proper divisors (546005411).

140323324321 is an equidigital number, since it uses as much as digits as its factorization.

140323324321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546005410.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 140323324321 its reverse (123423323041), we get a palindrome (263746647362).

The spelling of 140323324321 in words is "one hundred forty billion, three hundred twenty-three million, three hundred twenty-four thousand, three hundred twenty-one".