10010001001003 has 4 divisors (see below), whose sum is σ = 10045623780648. Its totient is φ = 9974378221360.

The previous prime is 10010001000973. The next prime is 10010001001009. The reversal of 10010001001003 is 30010010001001.

It is a happy number.

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 10010001001003 - 2⁵ = 10010001000971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10010001001009) 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, 17811389401 + ... + 17811389962.

It is an arithmetic number, because the mean of its divisors is an integer number (2511405945162).

Almost surely, 2^{10010001001003} is an apocalyptic number.

10010001001003 is a deficient number, since it is larger than the sum of its proper divisors (35622779645).

10010001001003 is an equidigital number, since it uses as much as digits as its factorization.

10010001001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35622779644.

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 10010001001003 its reverse (30010010001001), we get a palindrome (40020011002004).

The spelling of 10010001001003 in words is "ten trillion, ten billion, one million, one thousand, three".