12115510573 has 2 divisors, whose sum is σ = 12115510574. Its totient is φ = 12115510572.

The previous prime is 12115510559. The next prime is 12115510577. The reversal of 12115510573 is 37501551121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11165514889 + 949995684 = 105667^2 + 30822^2 .

It is a cyclic number.

It is not a de Polignac number, because 12115510573 - 2⁵ = 12115510541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12115510577) 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, 6057755286 + 6057755287.

It is an arithmetic number, because the mean of its divisors is an integer number (6057755287).

Almost surely, 2^12115510573 is an apocalyptic number.

It is an amenable number.

12115510573 is a deficient number, since it is larger than the sum of its proper divisors (1).

12115510573 is an equidigital number, since it uses as much as digits as its factorization.

12115510573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250, while the sum is 31.

The spelling of 12115510573 in words is "twelve billion, one hundred fifteen million, five hundred ten thousand, five hundred seventy-three".