20134343 has 2 divisors, whose sum is σ = 20134344. Its totient is φ = 20134342.

The previous prime is 20134333. The next prime is 20134369. The reversal of 20134343 is 34343102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20134343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20134313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10067171 + 10067172.

It is an arithmetic number, because the mean of its divisors is an integer number (10067172).

Almost surely, 2^20134343 is an apocalyptic number.

20134343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20134343 is an equidigital number, since it uses as much as digits as its factorization.

20134343 is an evil number, because the sum of its binary digits is even.

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

The square root of 20134343 is about 4487.1308204687. The cubic root of 20134343 is about 272.0481775604.

Adding to 20134343 its reverse (34343102), we get a palindrome (54477445).

The spelling of 20134343 in words is "twenty million, one hundred thirty-four thousand, three hundred forty-three".