13220001143 has 4 divisors (see below), whose sum is σ = 13220638440. Its totient is φ = 13219363848.

The previous prime is 13220001139. The next prime is 13220001163. The reversal of 13220001143 is 34110002231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34110002231 = 181 ⋅188453051.

It is a cyclic number.

It is not a de Polignac number, because 13220001143 - 2² = 13220001139 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 (13220001163) 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, 286448 + ... + 329381.

It is an arithmetic number, because the mean of its divisors is an integer number (3305159610).

Almost surely, 2^13220001143 is an apocalyptic number.

13220001143 is a deficient number, since it is larger than the sum of its proper divisors (637297).

13220001143 is an equidigital number, since it uses as much as digits as its factorization.

13220001143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 637296.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13220001143 its reverse (34110002231), we get a palindrome (47330003374).

The spelling of 13220001143 in words is "thirteen billion, two hundred twenty million, one thousand, one hundred forty-three".