31311031322 has 8 divisors (see below), whose sum is σ = 46968286656. Its totient is φ = 15654935772.

The previous prime is 31311031319. The next prime is 31311031333. The reversal of 31311031322 is 22313011313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31311031294 and 31311031303.

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, 218978 + ... + 332525.

It is an arithmetic number, because the mean of its divisors is an integer number (5871035832).

Almost surely, 2^31311031322 is an apocalyptic number.

31311031322 is a deficient number, since it is larger than the sum of its proper divisors (15657255334).

31311031322 is a wasteful number, since it uses less digits than its factorization.

31311031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579892.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31311031322 its reverse (22313011313), we get a palindrome (53624042635).

The spelling of 31311031322 in words is "thirty-one billion, three hundred eleven million, thirty-one thousand, three hundred twenty-two".