31223224314231 has 8 divisors (see below), whose sum is σ = 41695310369664. Its totient is φ = 20783310567480.

The previous prime is 31223224314187. The next prime is 31223224314251. The reversal of 31223224314231 is 13241342232213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31223224314231 - 2⁷ = 31223224314103 is a prime.

It is a super-2 number, since 2×31223224314231² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31223224314192 and 31223224314201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31223224314251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8043074905 + ... + 8043078786.

It is an arithmetic number, because the mean of its divisors is an integer number (5211913796208).

Almost surely, 2^{31223224314231} is an apocalyptic number.

31223224314231 is a deficient number, since it is larger than the sum of its proper divisors (10472086055433).

31223224314231 is a wasteful number, since it uses less digits than its factorization.

31223224314231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16086154341.

The product of its digits is 41472, while the sum is 33.

Adding to 31223224314231 its reverse (13241342232213), we get a palindrome (44464566546444).

The spelling of 31223224314231 in words is "thirty-one trillion, two hundred twenty-three billion, two hundred twenty-four million, three hundred fourteen thousand, two hundred thirty-one".