13021124197 has 2 divisors, whose sum is σ = 13021124198. Its totient is φ = 13021124196.

The previous prime is 13021124189. The next prime is 13021124209. The reversal of 13021124197 is 79142112031.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7354949121 + 5666175076 = 85761^2 + 75274^2 .

It is an emirp because it is prime and its reverse (79142112031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13021124197 - 2³ = 13021124189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13021124147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6510562098 + 6510562099.

It is an arithmetic number, because the mean of its divisors is an integer number (6510562099).

Almost surely, 2^13021124197 is an apocalyptic number.

It is an amenable number.

13021124197 is a deficient number, since it is larger than the sum of its proper divisors (1).

13021124197 is an equidigital number, since it uses as much as digits as its factorization.

13021124197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 13021124197 in words is "thirteen billion, twenty-one million, one hundred twenty-four thousand, one hundred ninety-seven".