20304132503 has 2 divisors, whose sum is σ = 20304132504. Its totient is φ = 20304132502.

The previous prime is 20304132479. The next prime is 20304132509. The reversal of 20304132503 is 30523140302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20304132503 - 2¹⁸ = 20303870359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20304132509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10152066251 + 10152066252.

It is an arithmetic number, because the mean of its divisors is an integer number (10152066252).

Almost surely, 2^20304132503 is an apocalyptic number.

20304132503 is a deficient number, since it is larger than the sum of its proper divisors (1).

20304132503 is an equidigital number, since it uses as much as digits as its factorization.

20304132503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20304132503 its reverse (30523140302), we get a palindrome (50827272805).

The spelling of 20304132503 in words is "twenty billion, three hundred four million, one hundred thirty-two thousand, five hundred three".