101001002003 has 4 divisors (see below), whose sum is σ = 110182911288. Its totient is φ = 91819092720.

The previous prime is 101001001939. The next prime is 101001002027. The reversal of 101001002003 is 300200100101.

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 101001002003 - 2⁶ = 101001001939 is a prime.

It is a super-2 number, since 2×101001002003² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101001002203) 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, 4590954626 + ... + 4590954647.

It is an arithmetic number, because the mean of its divisors is an integer number (27545727822).

Almost surely, 2^101001002003 is an apocalyptic number.

101001002003 is a deficient number, since it is larger than the sum of its proper divisors (9181909285).

101001002003 is an equidigital number, since it uses as much as digits as its factorization.

101001002003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9181909284.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 101001002003 its reverse (300200100101), we get a palindrome (401201102104).

The spelling of 101001002003 in words is "one hundred one billion, one million, two thousand, three".