13223031311 has 16 divisors (see below), whose sum is σ = 15233285184. Its totient is φ = 11243384064.

The previous prime is 13223031299. The next prime is 13223031329. The reversal of 13223031311 is 11313032231.

It is a cyclic number.

It is not a de Polignac number, because 13223031311 - 2¹⁴ = 13223014927 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 (13223031391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541481 + ... + 565373.

It is an arithmetic number, because the mean of its divisors is an integer number (952080324).

Almost surely, 2^13223031311 is an apocalyptic number.

13223031311 is a deficient number, since it is larger than the sum of its proper divisors (2010253873).

13223031311 is a wasteful number, since it uses less digits than its factorization.

13223031311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24530.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13223031311 its reverse (11313032231), we get a palindrome (24536063542).

The spelling of 13223031311 in words is "thirteen billion, two hundred twenty-three million, thirty-one thousand, three hundred eleven".