213232193197 has 2 divisors, whose sum is σ = 213232193198. Its totient is φ = 213232193196.

The previous prime is 213232193123. The next prime is 213232193231. The reversal of 213232193197 is 791391232312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208327432041 + 4904761156 = 456429^2 + 70034^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232193197 - 2¹⁵ = 213232160429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232193117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616096598 + 106616096599.

It is an arithmetic number, because the mean of its divisors is an integer number (106616096599).

Almost surely, 2^213232193197 is an apocalyptic number.

It is an amenable number.

213232193197 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232193197 is an equidigital number, since it uses as much as digits as its factorization.

213232193197 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 43.

The spelling of 213232193197 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred ninety-three thousand, one hundred ninety-seven".