105020003 has 4 divisors (see below), whose sum is σ = 114567288. Its totient is φ = 95472720.

The previous prime is 105019997. The next prime is 105020009. The reversal of 105020003 is 300020501.

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

It is an interprime number because it is at equal distance from previous prime (105019997) and next prime (105020009).

It is a cyclic number.

It is not a de Polignac number, because 105020003 - 2²⁴ = 88242787 is a prime.

It is a super-2 number, since 2×105020003² = 22058402060240018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (11), and also a Moran number because the ratio is a prime number: 9547273 = 105020003 / (1 + 0 + 5 + 0 + 2 + 0 + 0 + 0 + 3).

It is not an unprimeable number, because it can be changed into a prime (105020009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4773626 + ... + 4773647.

It is an arithmetic number, because the mean of its divisors is an integer number (28641822).

Almost surely, 2^105020003 is an apocalyptic number.

105020003 is a deficient number, since it is larger than the sum of its proper divisors (9547285).

105020003 is an equidigital number, since it uses as much as digits as its factorization.

105020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9547284.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 105020003 is about 10247.9267659366. The cubic root of 105020003 is about 471.7993542351.

Adding to 105020003 its reverse (300020501), we get a palindrome (405040504).

The spelling of 105020003 in words is "one hundred five million, twenty thousand, three".