12306236445 has 80 divisors (see below), whose sum is σ = 23849274240. Its totient is φ = 6049696896.

The previous prime is 12306236389. The next prime is 12306236497. The reversal of 12306236445 is 54463260321.

12306236445 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 6 + 2 + 3 + 644 + 5 = 666.

It is not a de Polignac number, because 12306236445 - 2⁶ = 12306236381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 263104 + ... + 306326.

It is an arithmetic number, because the mean of its divisors is an integer number (298115928).

Almost surely, 2^12306236445 is an apocalyptic number.

12306236445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12306236445 is a deficient number, since it is larger than the sum of its proper divisors (11543037795).

12306236445 is a wasteful number, since it uses less digits than its factorization.

12306236445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43296 (or 43287 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 12306236445 its reverse (54463260321), we get a palindrome (66769496766).

The spelling of 12306236445 in words is "twelve billion, three hundred six million, two hundred thirty-six thousand, four hundred forty-five".