31340422212 has 24 divisors (see below), whose sum is σ = 79775620512. Its totient is φ = 9497097600.

The previous prime is 31340422207. The next prime is 31340422229. The reversal of 31340422212 is 21222404313.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118713589 + ... + 118713852.

It is an arithmetic number, because the mean of its divisors is an integer number (3323984188).

Almost surely, 2^31340422212 is an apocalyptic number.

It is an amenable number.

31340422212 is an abundant number, since it is smaller than the sum of its proper divisors (48435198300).

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

31340422212 is a wasteful number, since it uses less digits than its factorization.

31340422212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237427459 (or 237427457 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31340422212 its reverse (21222404313), we get a palindrome (52562826525).

The spelling of 31340422212 in words is "thirty-one billion, three hundred forty million, four hundred twenty-two thousand, two hundred twelve".