31234343321 has 8 divisors (see below), whose sum is σ = 34509556224. Its totient is φ = 28118896960.

The previous prime is 31234343299. The next prime is 31234343323. The reversal of 31234343321 is 12334343213.

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 31234343321 - 2¹⁰ = 31234342297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31234343323) 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, 39941225 + ... + 39942006.

It is an arithmetic number, because the mean of its divisors is an integer number (4313694528).

Almost surely, 2^31234343321 is an apocalyptic number.

It is an amenable number.

31234343321 is a deficient number, since it is larger than the sum of its proper divisors (3275212903).

31234343321 is a wasteful number, since it uses less digits than its factorization.

31234343321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79883271.

The product of its digits is 15552, while the sum is 29.

Adding to 31234343321 its reverse (12334343213), we get a palindrome (43568686534).

The spelling of 31234343321 in words is "thirty-one billion, two hundred thirty-four million, three hundred forty-three thousand, three hundred twenty-one".