13110321021 has 16 divisors (see below), whose sum is σ = 19979276928. Its totient is φ = 7490995200.

The previous prime is 13110321019. The next prime is 13110321071. The reversal of 13110321021 is 12012301131.

It is a happy number.

It is not a de Polignac number, because 13110321021 - 2¹ = 13110321019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13110321071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397441 + ... + 429161.

It is an arithmetic number, because the mean of its divisors is an integer number (1248704808).

Almost surely, 2^13110321021 is an apocalyptic number.

It is an amenable number.

13110321021 is a deficient number, since it is larger than the sum of its proper divisors (6868955907).

13110321021 is a wasteful number, since it uses less digits than its factorization.

13110321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51412.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 13110321021 its reverse (12012301131), we get a palindrome (25122622152).

The spelling of 13110321021 in words is "thirteen billion, one hundred ten million, three hundred twenty-one thousand, twenty-one".