31321334412 has 36 divisors (see below), whose sum is σ = 83830631976. Its totient is φ = 9826300800.

The previous prime is 31321334411. The next prime is 31321334417. The reversal of 31321334412 is 21443312313.

It is a happy number.

31321334412 is a `hidden beast` number, since 3 + 1 + 3 + 213 + 3 + 441 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (31321334411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25588714 + ... + 25589937.

It is an arithmetic number, because the mean of its divisors is an integer number (2328628666).

Almost surely, 2^31321334412 is an apocalyptic number.

It is an amenable number.

31321334412 is an abundant number, since it is smaller than the sum of its proper divisors (52509297564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31321334412 is a wasteful number, since it uses less digits than its factorization.

31321334412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51178678 (or 51178673 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31321334412 its reverse (21443312313), we get a palindrome (52764646725).

The spelling of 31321334412 in words is "thirty-one billion, three hundred twenty-one million, three hundred thirty-four thousand, four hundred twelve".