20000100019 has 2 divisors, whose sum is σ = 20000100020. Its totient is φ = 20000100018.

The previous prime is 20000100013. The next prime is 20000100097. The reversal of 20000100019 is 91000100002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20000100019 - 2²¹ = 19998002867 is a prime.

It is a super-2 number, since 2×20000100019² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20000099981 and 20000100008.

It is not a weakly prime, because it can be changed into another prime (20000100013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000050009 + 10000050010.

It is an arithmetic number, because the mean of its divisors is an integer number (10000050010).

Almost surely, 2^20000100019 is an apocalyptic number.

20000100019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000100019 is an equidigital number, since it uses as much as digits as its factorization.

20000100019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The spelling of 20000100019 in words is "twenty billion, one hundred thousand, nineteen".