12305431245 has 32 divisors (see below), whose sum is σ = 20349195264. Its totient is φ = 6343257600.

The previous prime is 12305431219. The next prime is 12305431267. The reversal of 12305431245 is 54213450321.

It is not a de Polignac number, because 12305431245 - 2²¹ = 12303334093 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 365649 + ... + 397881.

It is an arithmetic number, because the mean of its divisors is an integer number (635912352).

Almost surely, 2^12305431245 is an apocalyptic number.

12305431245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12305431245 is a deficient number, since it is larger than the sum of its proper divisors (8043764019).

12305431245 is a wasteful number, since it uses less digits than its factorization.

12305431245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33093.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 12305431245 its reverse (54213450321), we get a palindrome (66518881566).

The spelling of 12305431245 in words is "twelve billion, three hundred five million, four hundred thirty-one thousand, two hundred forty-five".