11001021000003 has 6 divisors (see below), whose sum is σ = 15890363666684. Its totient is φ = 7334013999996.

The previous prime is 11001020999971. The next prime is 11001021000023. The reversal of 11001021000003 is 30000012010011.

11001021000003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11001021000003 - 2⁵ = 11001020999971 is a prime.

It is a super-2 number, since 2×11001021000003² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1222335666667 = 11001021000003 / (1 + 1 + 0 + 0 + 1 + 0 + 2 + 1 + 0 + 0 + 0 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001021000023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611167833325 + ... + 611167833342.

Almost surely, 2^{11001021000003} is an apocalyptic number.

11001021000003 is a deficient number, since it is larger than the sum of its proper divisors (4889342666681).

11001021000003 is a wasteful number, since it uses less digits than its factorization.

11001021000003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222335666673 (or 1222335666670 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 11001021000003 its reverse (30000012010011), we get a palindrome (41001033010014).

The spelling of 11001021000003 in words is "eleven trillion, one billion, twenty-one million, three", and thus it is an aban number and an uban number.