100023019 has 8 divisors (see below), whose sum is σ = 109323648. Its totient is φ = 91102080.

The previous prime is 100023017. The next prime is 100023029. The reversal of 100023019 is 910320001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100023019 - 2¹ = 100023017 is a prime.

It is a super-2 number, since 2×100023019² = 20009208659748722, 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 = 100022993 and 100023011.

It is not an unprimeable number, because it can be changed into a prime (100023013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94372 + ... + 95425.

It is an arithmetic number, because the mean of its divisors is an integer number (13665456).

Almost surely, 2^100023019 is an apocalyptic number.

100023019 is a deficient number, since it is larger than the sum of its proper divisors (9300629).

100023019 is a wasteful number, since it uses less digits than its factorization.

100023019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189845.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 100023019 is about 10001.1508837733. The cubic root of 100023019 is about 464.1944955400.

The spelling of 100023019 in words is "one hundred million, twenty-three thousand, nineteen".