100201019 has 4 divisors (see below), whose sum is σ = 100543296. Its totient is φ = 99858744.

The previous prime is 100200967. The next prime is 100201037. The reversal of 100201019 is 910102001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100201019 is a prime.

It is a super-2 number, since 2×100201019² = 20080488417276722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100200994 and 100201012.

It is not an unprimeable number, because it can be changed into a prime (100201099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170699 + ... + 171284.

It is an arithmetic number, because the mean of its divisors is an integer number (25135824).

Almost surely, 2^100201019 is an apocalyptic number.

100201019 is a deficient number, since it is larger than the sum of its proper divisors (342277).

100201019 is an equidigital number, since it uses as much as digits as its factorization.

100201019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342276.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 100201019 is about 10010.0459039907. The cubic root of 100201019 is about 464.4696910420.

The spelling of 100201019 in words is "one hundred million, two hundred one thousand, nineteen".