11003404031021 has 8 divisors (see below), whose sum is σ = 11082959043264. Its totient is φ = 10923936976800.

The previous prime is 11003404030961. The next prime is 11003404031029. The reversal of 11003404031021 is 12013040430011.

11003404031021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11003404031021 - 2¹⁰ = 11003404029997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11003404030984 and 11003404031002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11003404031029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21738395 + ... + 22238808.

It is an arithmetic number, because the mean of its divisors is an integer number (1385369880408).

Almost surely, 2^{11003404031021} is an apocalyptic number.

It is an amenable number.

11003404031021 is a deficient number, since it is larger than the sum of its proper divisors (79555012243).

11003404031021 is a wasteful number, since it uses less digits than its factorization.

11003404031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43979011.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11003404031021 its reverse (12013040430011), we get a palindrome (23016444461032).

The spelling of 11003404031021 in words is "eleven trillion, three billion, four hundred four million, thirty-one thousand, twenty-one".