31323003112 has 16 divisors (see below), whose sum is σ = 58732863840. Its totient is φ = 15660906096.

The previous prime is 31323003097. The next prime is 31323003113. The reversal of 31323003112 is 21130032313.

It is a super-2 number, since 2×31323003112² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31323003112.

It is not an unprimeable number, because it can be changed into a prime (31323003113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215613 + ... + 330355.

It is an arithmetic number, because the mean of its divisors is an integer number (3670803990).

Almost surely, 2^31323003112 is an apocalyptic number.

It is an amenable number.

31323003112 is a deficient number, since it is larger than the sum of its proper divisors (27409860728).

31323003112 is a wasteful number, since it uses less digits than its factorization.

31323003112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148872 (or 148868 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 31323003112 its reverse (21130032313), we get a palindrome (52453035425).

The spelling of 31323003112 in words is "thirty-one billion, three hundred twenty-three million, three thousand, one hundred twelve".