100102019 has 2 divisors, whose sum is σ = 100102020. Its totient is φ = 100102018.

The previous prime is 100101973. The next prime is 100102021. The reversal of 100102019 is 910201001.

It is a strong prime.

It is an emirp because it is prime and its reverse (910201001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100102019 - 2²⁰ = 99053443 is a prime.

It is a super-2 number, since 2×100102019² = 20040828415752722, which contains 22 as substring.

Together with 100102021, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 100101994 and 100102012.

It is not a weakly prime, because it can be changed into another prime (100102039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50051009 + 50051010.

It is an arithmetic number, because the mean of its divisors is an integer number (50051010).

Almost surely, 2^100102019 is an apocalyptic number.

100102019 is a deficient number, since it is larger than the sum of its proper divisors (1).

100102019 is an equidigital number, since it uses as much as digits as its factorization.

100102019 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 14.

The square root of 100102019 is about 10005.0996496787. The cubic root of 100102019 is about 464.3166731320.

The spelling of 100102019 in words is "one hundred million, one hundred two thousand, nineteen".