13133221129 has 12 divisors (see below), whose sum is σ = 15365739204. Its totient is φ = 11191969824.

The previous prime is 13133221093. The next prime is 13133221133. The reversal of 13133221129 is 92112233131.

It can be written as a sum of positive squares in 2 ways, for example, as 8584393104 + 4548828025 = 92652^2 + 67445^2 .

It is not a de Polignac number, because 13133221129 - 2¹⁵ = 13133188361 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13133221097 and 13133221106.

It is not an unprimeable number, because it can be changed into a prime (13133221169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 766162 + ... + 783115.

It is an arithmetic number, because the mean of its divisors is an integer number (1280478267).

Almost surely, 2^13133221129 is an apocalyptic number.

It is an amenable number.

13133221129 is a deficient number, since it is larger than the sum of its proper divisors (2232518075).

13133221129 is a wasteful number, since it uses less digits than its factorization.

13133221129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549464 (or 1549457 counting only the distinct ones).

The product of its digits is 1944, while the sum is 28.

The spelling of 13133221129 in words is "thirteen billion, one hundred thirty-three million, two hundred twenty-one thousand, one hundred twenty-nine".