31340221422 has 64 divisors (see below), whose sum is σ = 66731696640. Its totient is φ = 9784368000.

The previous prime is 31340221417. The next prime is 31340221447. The reversal of 31340221422 is 22412204313.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31340221392 and 31340221401.

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 31 ways as a sum of consecutive naturals, for example, 9819847 + ... + 9823037.

It is an arithmetic number, because the mean of its divisors is an integer number (1042682760).

Almost surely, 2^31340221422 is an apocalyptic number.

31340221422 is an abundant number, since it is smaller than the sum of its proper divisors (35391475218).

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

31340221422 is a wasteful number, since it uses less digits than its factorization.

31340221422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169.

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

Adding to 31340221422 its reverse (22412204313), we get a palindrome (53752425735).

The spelling of 31340221422 in words is "thirty-one billion, three hundred forty million, two hundred twenty-one thousand, four hundred twenty-two".