13223144131 has 4 divisors (see below), whose sum is σ = 13233309264. Its totient is φ = 13212979000.

The previous prime is 13223144093. The next prime is 13223144177. The reversal of 13223144131 is 13144132231.

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

It is a cyclic number.

It is not a de Polignac number, because 13223144131 - 2²⁹ = 12686273219 is a prime.

It is a super-2 number, since 2×13223144131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13223144096 and 13223144105.

It is not an unprimeable number, because it can be changed into a prime (13223144531) 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, 5080615 + ... + 5083216.

It is an arithmetic number, because the mean of its divisors is an integer number (3308327316).

Almost surely, 2^13223144131 is an apocalyptic number.

13223144131 is a deficient number, since it is larger than the sum of its proper divisors (10165133).

13223144131 is a wasteful number, since it uses less digits than its factorization.

13223144131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10165132.

The product of its digits is 1728, while the sum is 25.

Adding to 13223144131 its reverse (13144132231), we get a palindrome (26367276362).

The spelling of 13223144131 in words is "thirteen billion, two hundred twenty-three million, one hundred forty-four thousand, one hundred thirty-one".