13220884829 has 4 divisors (see below), whose sum is σ = 13224647484. Its totient is φ = 13217122176.

The previous prime is 13220884823. The next prime is 13220884841. The reversal of 13220884829 is 92848802231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92848802231 = 2083 ⋅44574557.

It can be written as a sum of positive squares in 2 ways, for example, as 11067460804 + 2153424025 = 105202^2 + 46405^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220884829 - 2²⁴ = 13204107613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220884823) 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, 1876052 + ... + 1883085.

It is an arithmetic number, because the mean of its divisors is an integer number (3306161871).

Almost surely, 2^13220884829 is an apocalyptic number.

It is an amenable number.

13220884829 is a deficient number, since it is larger than the sum of its proper divisors (3762655).

13220884829 is an equidigital number, since it uses as much as digits as its factorization.

13220884829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762654.

The product of its (nonzero) digits is 442368, while the sum is 47.

The spelling of 13220884829 in words is "thirteen billion, two hundred twenty million, eight hundred eighty-four thousand, eight hundred twenty-nine".