31101322312 has 16 divisors (see below), whose sum is σ = 58318546860. Its totient is φ = 15549709824.

The previous prime is 31101322297. The next prime is 31101322331. The reversal of 31101322312 is 21322310113.

It can be written as a sum of positive squares in 2 ways, for example, as 28949661316 + 2151660996 = 170146^2 + 46386^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31101322312.

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, 31168 + ... + 251344.

Almost surely, 2^31101322312 is an apocalyptic number.

It is an amenable number.

31101322312 is a deficient number, since it is larger than the sum of its proper divisors (27217224548).

31101322312 is a wasteful number, since it uses less digits than its factorization.

31101322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237840 (or 237836 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31101322312 its reverse (21322310113), we get a palindrome (52423632425).

The spelling of 31101322312 in words is "thirty-one billion, one hundred one million, three hundred twenty-two thousand, three hundred twelve".