11121613321 has 16 divisors (see below), whose sum is σ = 13736539264. Its totient is φ = 8768404224.

The previous prime is 11121613319. The next prime is 11121613331. The reversal of 11121613321 is 12331612111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11121613321 - 2¹ = 11121613319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121613292 and 11121613301.

It is not an unprimeable number, because it can be changed into a prime (11121613331) 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, 190176 + ... + 241681.

It is an arithmetic number, because the mean of its divisors is an integer number (858533704).

Almost surely, 2^11121613321 is an apocalyptic number.

It is an amenable number.

11121613321 is a deficient number, since it is larger than the sum of its proper divisors (2614925943).

11121613321 is a wasteful number, since it uses less digits than its factorization.

11121613321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432160.

The product of its digits is 216, while the sum is 22.

The spelling of 11121613321 in words is "eleven billion, one hundred twenty-one million, six hundred thirteen thousand, three hundred twenty-one".