12111444003 has 4 divisors (see below), whose sum is σ = 16148592008. Its totient is φ = 8074296000.

The previous prime is 12111443963. The next prime is 12111444017. The reversal of 12111444003 is 30044411121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30044411121 = 3 ⋅10014803707.

It is not a de Polignac number, because 12111444003 - 2¹⁶ = 12111378467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12111444503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2018573998 + ... + 2018574003.

It is an arithmetic number, because the mean of its divisors is an integer number (4037148002).

Almost surely, 2^12111444003 is an apocalyptic number.

12111444003 is a deficient number, since it is larger than the sum of its proper divisors (4037148005).

12111444003 is an equidigital number, since it uses as much as digits as its factorization.

12111444003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4037148004.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12111444003 its reverse (30044411121), we get a palindrome (42155855124).

The spelling of 12111444003 in words is "twelve billion, one hundred eleven million, four hundred forty-four thousand, three".