11320020213121 has 16 divisors (see below), whose sum is σ = 11423645513280. Its totient is φ = 11216719664640.

The previous prime is 11320020213119. The next prime is 11320020213157. The reversal of 11320020213121 is 12131202002311.

It is a cyclic number.

It is not a de Polignac number, because 11320020213121 - 2¹ = 11320020213119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320020213101) 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, 542317941 + ... + 542338813.

It is an arithmetic number, because the mean of its divisors is an integer number (713977844580).

Almost surely, 2^{11320020213121} is an apocalyptic number.

It is an amenable number.

11320020213121 is a deficient number, since it is larger than the sum of its proper divisors (103625300159).

11320020213121 is a wasteful number, since it uses less digits than its factorization.

11320020213121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28416.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11320020213121 its reverse (12131202002311), we get a palindrome (23451222215432).

The spelling of 11320020213121 in words is "eleven trillion, three hundred twenty billion, twenty million, two hundred thirteen thousand, one hundred twenty-one".