31210334412 has 96 divisors (see below), whose sum is σ = 76387147200. Its totient is φ = 9905280000.

The previous prime is 31210334381. The next prime is 31210334417. The reversal of 31210334412 is 21443301213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31210334417) 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 31 ways as a sum of consecutive naturals, for example, 9453162 + ... + 9456462.

It is an arithmetic number, because the mean of its divisors is an integer number (795699450).

Almost surely, 2^31210334412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31210334412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38193573600).

31210334412 is an abundant number, since it is smaller than the sum of its proper divisors (45176812788).

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

31210334412 is a wasteful number, since it uses less digits than its factorization.

31210334412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707 (or 3705 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31210334412 its reverse (21443301213), we get a palindrome (52653635625).

The spelling of 31210334412 in words is "thirty-one billion, two hundred ten million, three hundred thirty-four thousand, four hundred twelve".