2020031803 has 2 divisors, whose sum is σ = 2020031804. Its totient is φ = 2020031802.

The previous prime is 2020031791. The next prime is 2020031807. The reversal of 2020031803 is 3081300202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2020031803 - 2²⁵ = 1986477371 is a prime.

It is not a weakly prime, because it can be changed into another prime (2020031807) 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, 1010015901 + 1010015902.

It is an arithmetic number, because the mean of its divisors is an integer number (1010015902).

Almost surely, 2^2020031803 is an apocalyptic number.

2020031803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020031803 is an equidigital number, since it uses as much as digits as its factorization.

2020031803 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 19.

The square root of 2020031803 is about 44944.7639108273. The cubic root of 2020031803 is about 1264.1134988863.

It can be divided in two parts, 20200 and 31803, that added together give a triangular number (52003 = T₃₂₂).

The spelling of 2020031803 in words is "two billion, twenty million, thirty-one thousand, eight hundred three".