13011100021 has 16 divisors (see below), whose sum is σ = 13397503680. Its totient is φ = 12631212160.

The previous prime is 13011100019. The next prime is 13011100027. The reversal of 13011100021 is 12000111031.

It is a cyclic number.

It is not a de Polignac number, because 13011100021 - 2¹ = 13011100019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13011099980 and 13011100007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011100027) 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, 1588266 + ... + 1596436.

It is an arithmetic number, because the mean of its divisors is an integer number (837343980).

Almost surely, 2^13011100021 is an apocalyptic number.

It is an amenable number.

13011100021 is a deficient number, since it is larger than the sum of its proper divisors (386403659).

13011100021 is a wasteful number, since it uses less digits than its factorization.

13011100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8564.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 13011100021 its reverse (12000111031), we get a palindrome (25011211052).

The spelling of 13011100021 in words is "thirteen billion, eleven million, one hundred thousand, twenty-one".