140440340414321 has 4 divisors (see below), whose sum is σ = 140440568513700. Its totient is φ = 140440112314944.

The previous prime is 140440340414317. The next prime is 140440340414417. The reversal of 140440340414321 is 123414043044041.

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 26318551885921 + 114121788528400 = 5130161^2 + 10682780^2 .

It is a cyclic number.

It is not a de Polignac number, because 140440340414321 - 2² = 140440340414317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140440340414821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 113123636 + ... + 114358373.

It is an arithmetic number, because the mean of its divisors is an integer number (35110142128425).

Almost surely, 2^{140440340414321} is an apocalyptic number.

It is an amenable number.

140440340414321 is a deficient number, since it is larger than the sum of its proper divisors (228099379).

140440340414321 is an equidigital number, since it uses as much as digits as its factorization.

140440340414321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228099378.

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 140440340414321 its reverse (123414043044041), we get a palindrome (263854383458362).

The spelling of 140440340414321 in words is "one hundred forty trillion, four hundred forty billion, three hundred forty million, four hundred fourteen thousand, three hundred twenty-one".