12011212303 has 2 divisors, whose sum is σ = 12011212304. Its totient is φ = 12011212302.

The previous prime is 12011212253. The next prime is 12011212319. The reversal of 12011212303 is 30321211021.

It is an a-pointer prime, because the next prime (12011212319) can be obtained adding 12011212303 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011212303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011212393) 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 as a sum of consecutive naturals, namely, 6005606151 + 6005606152.

It is an arithmetic number, because the mean of its divisors is an integer number (6005606152).

Almost surely, 2^12011212303 is an apocalyptic number.

12011212303 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011212303 is an equidigital number, since it uses as much as digits as its factorization.

12011212303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12011212303 its reverse (30321211021), we get a palindrome (42332423324).

The spelling of 12011212303 in words is "twelve billion, eleven million, two hundred twelve thousand, three hundred three".