11010001003 has 16 divisors (see below), whose sum is σ = 12041604000. Its totient is φ = 10026761472.

The previous prime is 11010000997. The next prime is 11010001007. The reversal of 11010001003 is 30010001011.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11010001003 is a prime.

It is a super-2 number, since 2×11010001003² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11010001007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82551 + ... + 169807.

It is an arithmetic number, because the mean of its divisors is an integer number (752600250).

Almost surely, 2^11010001003 is an apocalyptic number.

11010001003 is a deficient number, since it is larger than the sum of its proper divisors (1031602997).

11010001003 is a wasteful number, since it uses less digits than its factorization.

11010001003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87534.

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

Adding to 11010001003 its reverse (30010001011), we get a palindrome (41020002014).

The spelling of 11010001003 in words is "eleven billion, ten million, one thousand, three".