20500453343 has 2 divisors, whose sum is σ = 20500453344. Its totient is φ = 20500453342.

The previous prime is 20500453327. The next prime is 20500453361. The reversal of 20500453343 is 34335400502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20500453343 - 2⁴ = 20500453327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20500450343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10250226671 + 10250226672.

It is an arithmetic number, because the mean of its divisors is an integer number (10250226672).

Almost surely, 2^20500453343 is an apocalyptic number.

20500453343 is a deficient number, since it is larger than the sum of its proper divisors (1).

20500453343 is an equidigital number, since it uses as much as digits as its factorization.

20500453343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 20500453343 its reverse (34335400502), we get a palindrome (54835853845).

The spelling of 20500453343 in words is "twenty billion, five hundred million, four hundred fifty-three thousand, three hundred forty-three".