20503341323 has 2 divisors, whose sum is σ = 20503341324. Its totient is φ = 20503341322.

The previous prime is 20503341311. The next prime is 20503341337. The reversal of 20503341323 is 32314330502.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20503341323 - 2⁴ = 20503341307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20503341292 and 20503341301.

It is not a weakly prime, because it can be changed into another prime (20503341343) 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, 10251670661 + 10251670662.

It is an arithmetic number, because the mean of its divisors is an integer number (10251670662).

Almost surely, 2^20503341323 is an apocalyptic number.

20503341323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20503341323 is an equidigital number, since it uses as much as digits as its factorization.

20503341323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 20503341323 its reverse (32314330502), we get a palindrome (52817671825).

The spelling of 20503341323 in words is "twenty billion, five hundred three million, three hundred forty-one thousand, three hundred twenty-three".