12231071745 has 8 divisors (see below), whose sum is σ = 19569714816. Its totient is φ = 6523238256.

The previous prime is 12231071737. The next prime is 12231071777. The reversal of 12231071745 is 54717013221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12231071745 - 2³ = 12231071737 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 407702377 + ... + 407702406.

It is an arithmetic number, because the mean of its divisors is an integer number (2446214352).

Almost surely, 2^12231071745 is an apocalyptic number.

12231071745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12231071745 is a deficient number, since it is larger than the sum of its proper divisors (7338643071).

12231071745 is an equidigital number, since it uses as much as digits as its factorization.

12231071745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815404791.

The product of its (nonzero) digits is 11760, while the sum is 33.

Adding to 12231071745 its reverse (54717013221), we get a palindrome (66948084966).

The spelling of 12231071745 in words is "twelve billion, two hundred thirty-one million, seventy-one thousand, seven hundred forty-five".