20200320403 has 2 divisors, whose sum is σ = 20200320404. Its totient is φ = 20200320402.

The previous prime is 20200320367. The next prime is 20200320419. The reversal of 20200320403 is 30402300202.

It is an a-pointer prime, because the next prime (20200320419) can be obtained adding 20200320403 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20200320403 is a prime.

It is not a weakly prime, because it can be changed into another prime (20200320443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10100160201 + 10100160202.

It is an arithmetic number, because the mean of its divisors is an integer number (10100160202).

Almost surely, 2^20200320403 is an apocalyptic number.

20200320403 is a deficient number, since it is larger than the sum of its proper divisors (1).

20200320403 is an equidigital number, since it uses as much as digits as its factorization.

20200320403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 16.

Adding to 20200320403 its reverse (30402300202), we get a palindrome (50602620605).

The spelling of 20200320403 in words is "twenty billion, two hundred million, three hundred twenty thousand, four hundred three".