11220020231311 has 8 divisors (see below), whose sum is σ = 11527820897040. Its totient is φ = 10916140593408.

The previous prime is 11220020231281. The next prime is 11220020231359. The reversal of 11220020231311 is 11313202002211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11220020231311 - 2¹³ = 11220020223119 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 (11220020237311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 980251156 + ... + 980262601.

It is an arithmetic number, because the mean of its divisors is an integer number (1440977612130).

Almost surely, 2^{11220020231311} is an apocalyptic number.

11220020231311 is a deficient number, since it is larger than the sum of its proper divisors (307800665729).

11220020231311 is an equidigital number, since it uses as much as digits as its factorization.

11220020231311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960513913.

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

Adding to 11220020231311 its reverse (11313202002211), we get a palindrome (22533222233522).

The spelling of 11220020231311 in words is "eleven trillion, two hundred twenty billion, twenty million, two hundred thirty-one thousand, three hundred eleven".