31343234 has 16 divisors (see below), whose sum is σ = 51347520. Its totient is φ = 14261520.

The previous prime is 31343197. The next prime is 31343237. The reversal of 31343234 is 43234313.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31343237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6644 + ... + 10335.

It is an arithmetic number, because the mean of its divisors is an integer number (3209220).

Almost surely, 2^31343234 is an apocalyptic number.

31343234 is a deficient number, since it is larger than the sum of its proper divisors (20004286).

31343234 is a wasteful number, since it uses less digits than its factorization.

31343234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17065.

The product of its digits is 2592, while the sum is 23.

The square root of 31343234 is about 5598.5028355802. The cubic root of 31343234 is about 315.2931980776.

Adding to 31343234 its reverse (43234313), we get a palindrome (74577547).

The spelling of 31343234 in words is "thirty-one million, three hundred forty-three thousand, two hundred thirty-four".