31222412343 has 12 divisors (see below), whose sum is σ = 45101260360. Its totient is φ = 20813916816.

The previous prime is 31222412339. The next prime is 31222412363. The reversal of 31222412343 is 34321422213.

31222412343 is a `hidden beast` number, since 312 + 2 + 2 + 4 + 1 + 2 + 343 = 666.

It is not a de Polignac number, because 31222412343 - 2² = 31222412339 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222412363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138453 + ... + 285681.

Almost surely, 2^31222412343 is an apocalyptic number.

31222412343 is a deficient number, since it is larger than the sum of its proper divisors (13878848017).

31222412343 is a wasteful number, since it uses less digits than its factorization.

31222412343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170798 (or 170795 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 31222412343 its reverse (34321422213), we get a palindrome (65543834556).

The spelling of 31222412343 in words is "thirty-one billion, two hundred twenty-two million, four hundred twelve thousand, three hundred forty-three".