31340403222 has 32 divisors (see below), whose sum is σ = 64339212384. Its totient is φ = 10173792000.

The previous prime is 31340403203. The next prime is 31340403229. The reversal of 31340403222 is 22230404313.

It is a junction number, because it is equal to n+sod(n) for n = 31340403192 and 31340403201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31340403229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 386943 + ... + 460874.

It is an arithmetic number, because the mean of its divisors is an integer number (2010600387).

Almost surely, 2^31340403222 is an apocalyptic number.

31340403222 is an abundant number, since it is smaller than the sum of its proper divisors (32998809162).

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

31340403222 is a wasteful number, since it uses less digits than its factorization.

31340403222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847984.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 31340403222 its reverse (22230404313), we get a palindrome (53570807535).

The spelling of 31340403222 in words is "thirty-one billion, three hundred forty million, four hundred three thousand, two hundred twenty-two".