31223103343 has 4 divisors (see below), whose sum is σ = 31224291840. Its totient is φ = 31221914848.

The previous prime is 31223103341. The next prime is 31223103413. The reversal of 31223103343 is 34330132213.

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 31223103343 - 2¹ = 31223103341 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 (31223103341) 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, 553930 + ... + 607687.

It is an arithmetic number, because the mean of its divisors is an integer number (7806072960).

Almost surely, 2^31223103343 is an apocalyptic number.

31223103343 is a deficient number, since it is larger than the sum of its proper divisors (1188497).

31223103343 is a wasteful number, since it uses less digits than its factorization.

31223103343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188496.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31223103343 its reverse (34330132213), we get a palindrome (65553235556).

The spelling of 31223103343 in words is "thirty-one billion, two hundred twenty-three million, one hundred three thousand, three hundred forty-three".