20302019 has 2 divisors, whose sum is σ = 20302020. Its totient is φ = 20302018.

The previous prime is 20301997. The next prime is 20302027. The reversal of 20302019 is 91020302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20302019 is a prime.

It is a super-2 number, since 2×20302019² = 824343950952722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20301988 and 20302006.

It is not a weakly prime, because it can be changed into another prime (20302099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151009 + 10151010.

It is an arithmetic number, because the mean of its divisors is an integer number (10151010).

Almost surely, 2^20302019 is an apocalyptic number.

20302019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302019 is an equidigital number, since it uses as much as digits as its factorization.

20302019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 20302019 is about 4505.7761817472. The cubic root of 20302019 is about 272.8012839168.

The spelling of 20302019 in words is "twenty million, three hundred two thousand, nineteen".