2020819403 has 2 divisors, whose sum is σ = 2020819404. Its totient is φ = 2020819402.

The previous prime is 2020819397. The next prime is 2020819477. The reversal of 2020819403 is 3049180202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2020819403 - 2⁸ = 2020819147 is a prime.

It is a super-4 number, since 4×2020819403⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2020819303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010409701 + 1010409702.

It is an arithmetic number, because the mean of its divisors is an integer number (1010409702).

Almost surely, 2^2020819403 is an apocalyptic number.

2020819403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020819403 is an equidigital number, since it uses as much as digits as its factorization.

2020819403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 2020819403 is about 44953.5249229691. The cubic root of 2020819403 is about 1264.2777679873.

Adding to 2020819403 its reverse (3049180202), we get a palindrome (5069999605).

The spelling of 2020819403 in words is "two billion, twenty million, eight hundred nineteen thousand, four hundred three".