31032320221322 has 24 divisors (see below), whose sum is σ = 55169896991076. Its totient is φ = 13048630603008.

The previous prime is 31032320221283. The next prime is 31032320221327. The reversal of 31032320221322 is 22312202323013.

It can be written as a sum of positive squares in 2 ways, for example, as 29648471491681 + 1383848729641 = 5445041^2 + 1176371^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31032320221291 and 31032320221300.

It is not an unprimeable number, because it can be changed into a prime (31032320221327) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2987318663 + ... + 2987329050.

Almost surely, 2^{31032320221322} is an apocalyptic number.

31032320221322 is a deficient number, since it is larger than the sum of its proper divisors (24137576769754).

31032320221322 is a wasteful number, since it uses less digits than its factorization.

31032320221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5974647782 (or 5974647775 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 31032320221322 its reverse (22312202323013), we get a palindrome (53344522544335).

The spelling of 31032320221322 in words is "thirty-one trillion, thirty-two billion, three hundred twenty million, two hundred twenty-one thousand, three hundred twenty-two".