197207311319 has 2 divisors, whose sum is σ = 197207311320. Its totient is φ = 197207311318.

The previous prime is 197207311303. The next prime is 197207311331. The reversal of 197207311319 is 913113702791.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 197207311319 - 2⁴ = 197207311303 is a prime.

It is a super-2 number, since 2×197207311319² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197207311319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197207311339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98603655659 + 98603655660.

It is an arithmetic number, because the mean of its divisors is an integer number (98603655660).

Almost surely, 2^197207311319 is an apocalyptic number.

197207311319 is a deficient number, since it is larger than the sum of its proper divisors (1).

197207311319 is an equidigital number, since it uses as much as digits as its factorization.

197207311319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The spelling of 197207311319 in words is "one hundred ninety-seven billion, two hundred seven million, three hundred eleven thousand, three hundred nineteen".