32144320431 has 6 divisors (see below), whose sum is σ = 46430685080. Its totient is φ = 21429546948.

The previous prime is 32144320421. The next prime is 32144320463. The reversal of 32144320431 is 13402344123.

It is not a de Polignac number, because 32144320431 - 2⁵ = 32144320399 is a prime.

It is a super-2 number, since 2×32144320431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32144320395 and 32144320404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32144320421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1785795571 + ... + 1785795588.

Almost surely, 2^32144320431 is an apocalyptic number.

32144320431 is a deficient number, since it is larger than the sum of its proper divisors (14286364649).

32144320431 is a wasteful number, since it uses less digits than its factorization.

32144320431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571591165 (or 3571591162 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 32144320431 its reverse (13402344123), we get a palindrome (45546664554).

The spelling of 32144320431 in words is "thirty-two billion, one hundred forty-four million, three hundred twenty thousand, four hundred thirty-one".