31333330012 has 12 divisors (see below), whose sum is σ = 55999994400. Its totient is φ = 15333331616.

The previous prime is 31333329983. The next prime is 31333330051. The reversal of 31333330012 is 21003333313.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 83333137 + ... + 83333512.

It is an arithmetic number, because the mean of its divisors is an integer number (4666666200).

Almost surely, 2^31333330012 is an apocalyptic number.

It is an amenable number.

31333330012 is a deficient number, since it is larger than the sum of its proper divisors (24666664388).

31333330012 is a wasteful number, since it uses less digits than its factorization.

31333330012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166666700 (or 166666698 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31333330012 its reverse (21003333313), we get a palindrome (52336663325).

The spelling of 31333330012 in words is "thirty-one billion, three hundred thirty-three million, three hundred thirty thousand, twelve".