12011211003 has 16 divisors (see below), whose sum is σ = 17667158400. Its totient is φ = 7197727680.

The previous prime is 12011210999. The next prime is 12011211011. The reversal of 12011211003 is 30011211021.

It is not a de Polignac number, because 12011211003 - 2² = 12011210999 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12011211003.

It is not an unprimeable number, because it can be changed into a prime (12011211013) 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, 2041873 + ... + 2047746.

It is an arithmetic number, because the mean of its divisors is an integer number (1104197400).

Almost surely, 2^12011211003 is an apocalyptic number.

12011211003 is a deficient number, since it is larger than the sum of its proper divisors (5655947397).

12011211003 is a wasteful number, since it uses less digits than its factorization.

12011211003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4089722.

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

Adding to 12011211003 its reverse (30011211021), we get a palindrome (42022422024).

The spelling of 12011211003 in words is "twelve billion, eleven million, two hundred eleven thousand, three".