2163321197 has 2 divisors, whose sum is σ = 2163321198. Its totient is φ = 2163321196.

The previous prime is 2163321191. The next prime is 2163321203. The reversal of 2163321197 is 7911233612.

It is a balanced prime because it is at equal distance from previous prime (2163321191) and next prime (2163321203).

It can be written as a sum of positive squares in only one way, i.e., 2070796036 + 92525161 = 45506^2 + 9619^2 .

It is a cyclic number.

It is not a de Polignac number, because 2163321197 - 2¹⁸ = 2163059053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2163321191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1081660598 + 1081660599.

It is an arithmetic number, because the mean of its divisors is an integer number (1081660599).

Almost surely, 2^2163321197 is an apocalyptic number.

It is an amenable number.

2163321197 is a deficient number, since it is larger than the sum of its proper divisors (1).

2163321197 is an equidigital number, since it uses as much as digits as its factorization.

2163321197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13608, while the sum is 35.

The square root of 2163321197 is about 46511.5168211057. The cubic root of 2163321197 is about 1293.3230027088.

The spelling of 2163321197 in words is "two billion, one hundred sixty-three million, three hundred twenty-one thousand, one hundred ninety-seven".