11323220031121 has 4 divisors (see below), whose sum is σ = 11327120557632. Its totient is φ = 11319319504612.

The previous prime is 11323220031073. The next prime is 11323220031239. The reversal of 11323220031121 is 12113002232311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11323220031121 - 2¹¹ = 11323220029073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11323220031092 and 11323220031101.

It is not an unprimeable number, because it can be changed into a prime (11323220035121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950258901 + ... + 1950264706.

It is an arithmetic number, because the mean of its divisors is an integer number (2831780139408).

Almost surely, 2^{11323220031121} is an apocalyptic number.

It is an amenable number.

11323220031121 is a deficient number, since it is larger than the sum of its proper divisors (3900526511).

11323220031121 is an equidigital number, since it uses as much as digits as its factorization.

11323220031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900526510.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11323220031121 its reverse (12113002232311), we get a palindrome (23436222263432).

The spelling of 11323220031121 in words is "eleven trillion, three hundred twenty-three billion, two hundred twenty million, thirty-one thousand, one hundred twenty-one".