31234422320 has 40 divisors (see below), whose sum is σ = 76891801824. Its totient is φ = 11758840832.

The previous prime is 31234422313. The next prime is 31234422361. The reversal of 31234422320 is 2322443213.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-3 number, since 3×31234422320³ (a number of 32 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 31234422320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11481884 + ... + 11484603.

Almost surely, 2^31234422320 is an apocalyptic number.

It is an amenable number.

31234422320 is an abundant number, since it is smaller than the sum of its proper divisors (45657379504).

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

31234422320 is a wasteful number, since it uses less digits than its factorization.

31234422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22966517 (or 22966511 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 31234422320 its reverse (2322443213), we get a palindrome (33556865533).

The spelling of 31234422320 in words is "thirty-one billion, two hundred thirty-four million, four hundred twenty-two thousand, three hundred twenty".