102100002019 has 2 divisors, whose sum is σ = 102100002020. Its totient is φ = 102100002018.

The previous prime is 102100002013. The next prime is 102100002047. The reversal of 102100002019 is 910200001201.

It is a weak prime.

It is an emirp because it is prime and its reverse (910200001201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102100002019 - 2¹⁷ = 102099870947 is a prime.

It is a super-2 number, since 2×102100002019² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102100001993 and 102100002011.

It is not a weakly prime, because it can be changed into another prime (102100002013) 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, 51050001009 + 51050001010.

It is an arithmetic number, because the mean of its divisors is an integer number (51050001010).

Almost surely, 2^102100002019 is an apocalyptic number.

102100002019 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100002019 is an equidigital number, since it uses as much as digits as its factorization.

102100002019 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 spelling of 102100002019 in words is "one hundred two billion, one hundred million, two thousand, nineteen".