12306023545 has 8 divisors (see below), whose sum is σ = 14969519496. Its totient is φ = 9709958016.

The previous prime is 12306023539. The next prime is 12306023567. The reversal of 12306023545 is 54532060321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 114921 + 12305908624 = 339^2 + 110932^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12306023545 - 2³ = 12306023537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16857202 + ... + 16857931.

It is an arithmetic number, because the mean of its divisors is an integer number (1871189937).

Almost surely, 2^12306023545 is an apocalyptic number.

It is an amenable number.

12306023545 is a deficient number, since it is larger than the sum of its proper divisors (2663495951).

12306023545 is an equidigital number, since it uses as much as digits as its factorization.

12306023545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33715211.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 12306023545 its reverse (54532060321), we get a palindrome (66838083866).

The spelling of 12306023545 in words is "twelve billion, three hundred six million, twenty-three thousand, five hundred forty-five".