12312011003 has 2 divisors, whose sum is σ = 12312011004. Its totient is φ = 12312011002.

The previous prime is 12312010957. The next prime is 12312011009. The reversal of 12312011003 is 30011021321.

It is a strong prime.

It is an emirp because it is prime and its reverse (30011021321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12312011003 - 2¹⁶ = 12311945467 is a prime.

It is a super-2 number, since 2×12312011003² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12312011009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156005501 + 6156005502.

It is an arithmetic number, because the mean of its divisors is an integer number (6156005502).

Almost surely, 2^12312011003 is an apocalyptic number.

12312011003 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312011003 is an equidigital number, since it uses as much as digits as its factorization.

12312011003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12312011003 its reverse (30011021321), we get a palindrome (42323032324).

The spelling of 12312011003 in words is "twelve billion, three hundred twelve million, eleven thousand, three".