31214343 has 8 divisors (see below), whose sum is σ = 41705856. Its totient is φ = 20766200.

The previous prime is 31214341. The next prime is 31214357. The reversal of 31214343 is 34341213.

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 31214343 - 2¹ = 31214341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31214341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9123 + ... + 12068.

It is an arithmetic number, because the mean of its divisors is an integer number (5213232).

Almost surely, 2^31214343 is an apocalyptic number.

31214343 is a deficient number, since it is larger than the sum of its proper divisors (10491513).

31214343 is a wasteful number, since it uses less digits than its factorization.

31214343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21685.

The product of its digits is 864, while the sum is 21.

The square root of 31214343 is about 5586.9797744399. The cubic root of 31214343 is about 314.8604168669.

Adding to 31214343 its reverse (34341213), we get a palindrome (65555556).

The spelling of 31214343 in words is "thirty-one million, two hundred fourteen thousand, three hundred forty-three".