1012020019 has 2 divisors, whose sum is σ = 1012020020. Its totient is φ = 1012020018.

The previous prime is 1012019993. The next prime is 1012020029. The reversal of 1012020019 is 9100202101.

1012020019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012020019 is a prime.

It is a super-2 number, since 2×1012020019² = 2048369037713520722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1012019984 and 1012020011.

It is not a weakly prime, because it can be changed into another prime (1012020029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506010009 + 506010010.

It is an arithmetic number, because the mean of its divisors is an integer number (506010010).

Almost surely, 2^1012020019 is an apocalyptic number.

1012020019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012020019 is an equidigital number, since it uses as much as digits as its factorization.

1012020019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1012020019 is about 31812.2620855544. The cubic root of 1012020019 is about 1003.9907259213.

The spelling of 1012020019 in words is "one billion, twelve million, twenty thousand, nineteen".