31030312322 has 16 divisors (see below), whose sum is σ = 48583132992. Its totient is φ = 14836322160.

The previous prime is 31030312273. The next prime is 31030312331. The reversal of 31030312322 is 22321303013.

It is a junction number, because it is equal to n+sod(n) for n = 31030312294 and 31030312303.

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, 68072 + ... + 258252.

It is an arithmetic number, because the mean of its divisors is an integer number (3036445812).

Almost surely, 2^31030312322 is an apocalyptic number.

31030312322 is a deficient number, since it is larger than the sum of its proper divisors (17552820670).

31030312322 is a wasteful number, since it uses less digits than its factorization.

31030312322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193753.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31030312322 its reverse (22321303013), we get a palindrome (53351615335).

The spelling of 31030312322 in words is "thirty-one billion, thirty million, three hundred twelve thousand, three hundred twenty-two".