12003145541 has 8 divisors (see below), whose sum is σ = 12142509120. Its totient is φ = 11864585728.

The previous prime is 12003145487. The next prime is 12003145549. The reversal of 12003145541 is 14554130021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12003145541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12003145541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003145549) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 170876 + ... + 230661.

It is an arithmetic number, because the mean of its divisors is an integer number (1517813640).

Almost surely, 2^12003145541 is an apocalyptic number.

It is an amenable number.

12003145541 is a deficient number, since it is larger than the sum of its proper divisors (139363579).

12003145541 is a wasteful number, since it uses less digits than its factorization.

12003145541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401883.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 12003145541 its reverse (14554130021), we get a palindrome (26557275562).

The spelling of 12003145541 in words is "twelve billion, three million, one hundred forty-five thousand, five hundred forty-one".