12112303545 has 32 divisors (see below), whose sum is σ = 21553958400. Its totient is φ = 6453603072.

The previous prime is 12112303519. The next prime is 12112303607. The reversal of 12112303545 is 54530321121.

12112303545 is a `hidden beast` number, since 1 + 2 + 112 + 3 + 0 + 3 + 545 = 666.

It is not a de Polignac number, because 12112303545 - 2⁷ = 12112303417 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97089 + ... + 183441.

It is an arithmetic number, because the mean of its divisors is an integer number (673561200).

Almost surely, 2^12112303545 is an apocalyptic number.

12112303545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12112303545 is a deficient number, since it is larger than the sum of its proper divisors (9441654855).

12112303545 is a wasteful number, since it uses less digits than its factorization.

12112303545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87406 (or 87400 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 12112303545 its reverse (54530321121), we get a palindrome (66642624666).

The spelling of 12112303545 in words is "twelve billion, one hundred twelve million, three hundred three thousand, five hundred forty-five".