11001320320231 has 4 divisors (see below), whose sum is σ = 11001375813600. Its totient is φ = 11001264826864.

The previous prime is 11001320320201. The next prime is 11001320320241. The reversal of 11001320320231 is 13202302310011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11001320320231 - 2³⁷ = 10863881366759 is a prime.

It is a super-2 number, since 2×11001320320231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001320320199 and 11001320320208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001320320201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27448246 + ... + 27846163.

It is an arithmetic number, because the mean of its divisors is an integer number (2750343953400).

Almost surely, 2^{11001320320231} is an apocalyptic number.

11001320320231 is a deficient number, since it is larger than the sum of its proper divisors (55493369).

11001320320231 is an equidigital number, since it uses as much as digits as its factorization.

11001320320231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55493368.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11001320320231 its reverse (13202302310011), we get a palindrome (24203622630242).

The spelling of 11001320320231 in words is "eleven trillion, one billion, three hundred twenty million, three hundred twenty thousand, two hundred thirty-one".