31234343243 has 8 divisors (see below), whose sum is σ = 32683771728. Its totient is φ = 29816770464.

The previous prime is 31234343233. The next prime is 31234343249. The reversal of 31234343243 is 34234343213.

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

It is a cyclic number.

It is not a de Polignac number, because 31234343243 - 2¹⁰ = 31234342219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31234343249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7961921 + ... + 7965842.

It is an arithmetic number, because the mean of its divisors is an integer number (4085471466).

Almost surely, 2^31234343243 is an apocalyptic number.

31234343243 is a deficient number, since it is larger than the sum of its proper divisors (1449428485).

31234343243 is a wasteful number, since it uses less digits than its factorization.

31234343243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15927853.

The product of its digits is 62208, while the sum is 32.

Adding to 31234343243 its reverse (34234343213), we get a palindrome (65468686456).

The spelling of 31234343243 in words is "thirty-one billion, two hundred thirty-four million, three hundred forty-three thousand, two hundred forty-three".