31034243 has 2 divisors, whose sum is σ = 31034244. Its totient is φ = 31034242.

The previous prime is 31034233. The next prime is 31034251. The reversal of 31034243 is 34243013.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31034243 - 2⁸ = 31033987 is a prime.

It is not a weakly prime, because it can be changed into another prime (31034233) 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 as a sum of consecutive naturals, namely, 15517121 + 15517122.

It is an arithmetic number, because the mean of its divisors is an integer number (15517122).

Almost surely, 2^31034243 is an apocalyptic number.

31034243 is a deficient number, since it is larger than the sum of its proper divisors (1).

31034243 is an equidigital number, since it uses as much as digits as its factorization.

31034243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 31034243 is about 5570.8386262752. The cubic root of 31034243 is about 314.2536896629.

Adding to 31034243 its reverse (34243013), we get a palindrome (65277256).

The spelling of 31034243 in words is "thirty-one million, thirty-four thousand, two hundred forty-three".