100020002003 has 4 divisors (see below), whose sum is σ = 102148087200. Its totient is φ = 97891916808.

The previous prime is 100020001979. The next prime is 100020002009. The reversal of 100020002003 is 300200020001.

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

It is a cyclic number.

It is not a de Polignac number, because 100020002003 - 2²² = 100015807699 is a prime.

It is a super-4 number, since 4×100020002003⁴ (a number of 45 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100020002009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1064042528 + ... + 1064042621.

It is an arithmetic number, because the mean of its divisors is an integer number (25537021800).

Almost surely, 2^100020002003 is an apocalyptic number.

100020002003 is a deficient number, since it is larger than the sum of its proper divisors (2128085197).

100020002003 is an equidigital number, since it uses as much as digits as its factorization.

100020002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128085196.

The product of its (nonzero) digits is 12, while the sum is 8.

Adding to 100020002003 its reverse (300200020001), we get a palindrome (400220022004).

The spelling of 100020002003 in words is "one hundred billion, twenty million, two thousand, three".