31322431344 has 20 divisors (see below), whose sum is σ = 80916281096. Its totient is φ = 10440810432.

The previous prime is 31322431307. The next prime is 31322431369. The reversal of 31322431344 is 44313422313.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326275279 + ... + 326275374.

Almost surely, 2^31322431344 is an apocalyptic number.

It is an amenable number.

31322431344 is an abundant number, since it is smaller than the sum of its proper divisors (49593849752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31322431344 is a wasteful number, since it uses less digits than its factorization.

31322431344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652550664 (or 652550658 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 31322431344 its reverse (44313422313), we get a palindrome (75635853657).

The spelling of 31322431344 in words is "thirty-one billion, three hundred twenty-two million, four hundred thirty-one thousand, three hundred forty-four".