12002003111 has 12 divisors (see below), whose sum is σ = 14782780368. Its totient is φ = 9682287552.

The previous prime is 12002003107. The next prime is 12002003137. The reversal of 12002003111 is 11130020021.

It is not a de Polignac number, because 12002003111 - 2² = 12002003107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12002003092 and 12002003101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002003311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7203251 + ... + 7204916.

It is an arithmetic number, because the mean of its divisors is an integer number (1231898364).

Almost surely, 2^12002003111 is an apocalyptic number.

12002003111 is a deficient number, since it is larger than the sum of its proper divisors (2780777257).

12002003111 is a wasteful number, since it uses less digits than its factorization.

12002003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14408198 (or 14408191 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12002003111 its reverse (11130020021), we get a palindrome (23132023132).

The spelling of 12002003111 in words is "twelve billion, two million, three thousand, one hundred eleven".