140424231134321 has 4 divisors (see below), whose sum is σ = 140450562328692. Its totient is φ = 140397899939952.

The previous prime is 140424231134309. The next prime is 140424231134333. The reversal of 140424231134321 is 123431132424041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (140424231134309) and next prime (140424231134333).

It can be written as a sum of positive squares in 2 ways, for example, as 123901632094321 + 16522599040000 = 11131111^2 + 4064800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140424231134321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140424231134371) 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, 13165589186 + ... + 13165599851.

It is an arithmetic number, because the mean of its divisors is an integer number (35112640582173).

Almost surely, 2^{140424231134321} is an apocalyptic number.

It is an amenable number.

140424231134321 is a deficient number, since it is larger than the sum of its proper divisors (26331194371).

140424231134321 is an equidigital number, since it uses as much as digits as its factorization.

140424231134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26331194370.

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 140424231134321 its reverse (123431132424041), we get a palindrome (263855363558362).

The spelling of 140424231134321 in words is "one hundred forty trillion, four hundred twenty-four billion, two hundred thirty-one million, one hundred thirty-four thousand, three hundred twenty-one".