13221301043 has 4 divisors (see below), whose sum is σ = 13295163240. Its totient is φ = 13147438848.

The previous prime is 13221301003. The next prime is 13221301061. The reversal of 13221301043 is 34010312231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221301043 is a prime.

It is a super-3 number, since 3×13221301043³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13221301003) 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, 36930830 + ... + 36931187.

It is an arithmetic number, because the mean of its divisors is an integer number (3323790810).

Almost surely, 2^13221301043 is an apocalyptic number.

13221301043 is a deficient number, since it is larger than the sum of its proper divisors (73862197).

13221301043 is an equidigital number, since it uses as much as digits as its factorization.

13221301043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73862196.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13221301043 its reverse (34010312231), we get a palindrome (47231613274).

The spelling of 13221301043 in words is "thirteen billion, two hundred twenty-one million, three hundred one thousand, forty-three".