12011021003 has 2 divisors, whose sum is σ = 12011021004. Its totient is φ = 12011021002.

The previous prime is 12011020951. The next prime is 12011021027. The reversal of 12011021003 is 30012011021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12011021003 - 2¹⁴ = 12011004619 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011026003) 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, 6005510501 + 6005510502.

It is an arithmetic number, because the mean of its divisors is an integer number (6005510502).

Almost surely, 2^12011021003 is an apocalyptic number.

12011021003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011021003 is an equidigital number, since it uses as much as digits as its factorization.

12011021003 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12011021003 its reverse (30012011021), we get a palindrome (42023032024).

The spelling of 12011021003 in words is "twelve billion, eleven million, twenty-one thousand, three".