14440320431 has 2 divisors, whose sum is σ = 14440320432. Its totient is φ = 14440320430.

The previous prime is 14440320413. The next prime is 14440320509. The reversal of 14440320431 is 13402304441.

Together with previous prime (14440320413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14440320431 is a prime.

It is a super-3 number, since 3×14440320431³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 14440320431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14440320031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7220160215 + 7220160216.

It is an arithmetic number, because the mean of its divisors is an integer number (7220160216).

Almost surely, 2^14440320431 is an apocalyptic number.

14440320431 is a deficient number, since it is larger than the sum of its proper divisors (1).

14440320431 is an equidigital number, since it uses as much as digits as its factorization.

14440320431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 14440320431 its reverse (13402304441), we get a palindrome (27842624872).

The spelling of 14440320431 in words is "fourteen billion, four hundred forty million, three hundred twenty thousand, four hundred thirty-one".