11220321120311 has 4 divisors (see below), whose sum is σ = 11241857245824. Its totient is φ = 11198784994800.

The previous prime is 11220321120277. The next prime is 11220321120433. The reversal of 11220321120311 is 11302112302211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11220321120311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220321110311) 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, 10768061975 + ... + 10768063016.

It is an arithmetic number, because the mean of its divisors is an integer number (2810464311456).

Almost surely, 2^{11220321120311} is an apocalyptic number.

11220321120311 is a deficient number, since it is larger than the sum of its proper divisors (21536125513).

11220321120311 is an equidigital number, since it uses as much as digits as its factorization.

11220321120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21536125512.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 11220321120311 its reverse (11302112302211), we get a palindrome (22522433422522).

The spelling of 11220321120311 in words is "eleven trillion, two hundred twenty billion, three hundred twenty-one million, one hundred twenty thousand, three hundred eleven".