13021066441 has 2 divisors, whose sum is σ = 13021066442. Its totient is φ = 13021066440.

The previous prime is 13021066433. The next prime is 13021066469. The reversal of 13021066441 is 14466012031.

It is an a-pointer prime, because the next prime (13021066469) can be obtained adding 13021066441 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9888313600 + 3132752841 = 99440^2 + 55971^2 .

It is a cyclic number.

It is not a de Polignac number, because 13021066441 - 2³ = 13021066433 is a prime.

It is not a weakly prime, because it can be changed into another prime (13021066141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510533220 + 6510533221.

It is an arithmetic number, because the mean of its divisors is an integer number (6510533221).

Almost surely, 2^13021066441 is an apocalyptic number.

It is an amenable number.

13021066441 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021066441 is an equidigital number, since it uses as much as digits as its factorization.

13021066441 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 13021066441 its reverse (14466012031), we get a palindrome (27487078472).

The spelling of 13021066441 in words is "thirteen billion, twenty-one million, sixty-six thousand, four hundred forty-one".