31347386223 has 4 divisors (see below), whose sum is σ = 41796514968. Its totient is φ = 20898257480.

The previous prime is 31347386221. The next prime is 31347386263. The reversal of 31347386223 is 32268374313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31347386223 - 2¹ = 31347386221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31347386221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5224564368 + ... + 5224564373.

It is an arithmetic number, because the mean of its divisors is an integer number (10449128742).

Almost surely, 2^31347386223 is an apocalyptic number.

31347386223 is a deficient number, since it is larger than the sum of its proper divisors (10449128745).

31347386223 is a wasteful number, since it uses less digits than its factorization.

31347386223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449128744.

The product of its digits is 435456, while the sum is 42.

The spelling of 31347386223 in words is "thirty-one billion, three hundred forty-seven million, three hundred eighty-six thousand, two hundred twenty-three".