13220042311 has 4 divisors (see below), whose sum is σ = 15108619792. Its totient is φ = 11331464832.

The previous prime is 13220042273. The next prime is 13220042321. The reversal of 13220042311 is 11324002231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11324002231 = 491 ⋅23063141.

It is a cyclic number.

It is not a de Polignac number, because 13220042311 - 2¹¹ = 13220040263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220042321) 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, 944288730 + ... + 944288743.

It is an arithmetic number, because the mean of its divisors is an integer number (3777154948).

Almost surely, 2^13220042311 is an apocalyptic number.

13220042311 is a deficient number, since it is larger than the sum of its proper divisors (1888577481).

13220042311 is an equidigital number, since it uses as much as digits as its factorization.

13220042311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1888577480.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13220042311 its reverse (11324002231), we get a palindrome (24544044542).

The spelling of 13220042311 in words is "thirteen billion, two hundred twenty million, forty-two thousand, three hundred eleven".