20352450523 has 2 divisors, whose sum is σ = 20352450524. Its totient is φ = 20352450522.

The previous prime is 20352450431. The next prime is 20352450557. The reversal of 20352450523 is 32505425302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20352450523 - 2²¹ = 20350353371 is a prime.

It is not a weakly prime, because it can be changed into another prime (20352450593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10176225261 + 10176225262.

It is an arithmetic number, because the mean of its divisors is an integer number (10176225262).

Almost surely, 2^20352450523 is an apocalyptic number.

20352450523 is a deficient number, since it is larger than the sum of its proper divisors (1).

20352450523 is an equidigital number, since it uses as much as digits as its factorization.

20352450523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36000, while the sum is 31.

Adding to 20352450523 its reverse (32505425302), we get a palindrome (52857875825).

The spelling of 20352450523 in words is "twenty billion, three hundred fifty-two million, four hundred fifty thousand, five hundred twenty-three".