11545232197 has 2 divisors, whose sum is σ = 11545232198. Its totient is φ = 11545232196.

The previous prime is 11545232173. The next prime is 11545232201. The reversal of 11545232197 is 79123254511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7370909316 + 4174322881 = 85854^2 + 64609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11545232197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11545233197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5772616098 + 5772616099.

It is an arithmetic number, because the mean of its divisors is an integer number (5772616099).

Almost surely, 2^11545232197 is an apocalyptic number.

It is an amenable number.

11545232197 is a deficient number, since it is larger than the sum of its proper divisors (1).

11545232197 is an equidigital number, since it uses as much as digits as its factorization.

11545232197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75600, while the sum is 40.

The spelling of 11545232197 in words is "eleven billion, five hundred forty-five million, two hundred thirty-two thousand, one hundred ninety-seven".