12003050511 has 6 divisors (see below), whose sum is σ = 17337739640. Its totient is φ = 8002033668.

The previous prime is 12003050509. The next prime is 12003050531. The reversal of 12003050511 is 11505030021.

12003050511 is a `hidden beast` number, since 120 + 0 + 30 + 5 + 0 + 511 = 666.

It is not a de Polignac number, because 12003050511 - 2¹ = 12003050509 is a prime.

It is a super-2 number, since 2×12003050511² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003050531) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666836131 + ... + 666836148.

Almost surely, 2^12003050511 is an apocalyptic number.

12003050511 is a deficient number, since it is larger than the sum of its proper divisors (5334689129).

12003050511 is a wasteful number, since it uses less digits than its factorization.

12003050511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333672285 (or 1333672282 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

Adding to 12003050511 its reverse (11505030021), we get a palindrome (23508080532).

The spelling of 12003050511 in words is "twelve billion, three million, fifty thousand, five hundred eleven".