12000304545 has 16 divisors (see below), whose sum is σ = 19862573760. Its totient is φ = 6179466944.

The previous prime is 12000304543. The next prime is 12000304571. The reversal of 12000304545 is 54540300021.

It is a cyclic number.

It is not a de Polignac number, because 12000304545 - 2¹ = 12000304543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12000304543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13793019 + ... + 13793888.

It is an arithmetic number, because the mean of its divisors is an integer number (1241410860).

Almost surely, 2^12000304545 is an apocalyptic number.

12000304545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12000304545 is a deficient number, since it is larger than the sum of its proper divisors (7862269215).

12000304545 is a wasteful number, since it uses less digits than its factorization.

12000304545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27586944.

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 12000304545 its reverse (54540300021), we get a palindrome (66540604566).

The spelling of 12000304545 in words is "twelve billion, three hundred four thousand, five hundred forty-five".