12311022103 has 2 divisors, whose sum is σ = 12311022104. Its totient is φ = 12311022102.

The previous prime is 12311022049. The next prime is 12311022169. The reversal of 12311022103 is 30122011321.

It is a weak prime.

It is an emirp because it is prime and its reverse (30122011321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12311022103 is a prime.

It is a super-2 number, since 2×12311022103² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311022403) 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, 6155511051 + 6155511052.

It is an arithmetic number, because the mean of its divisors is an integer number (6155511052).

Almost surely, 2^12311022103 is an apocalyptic number.

12311022103 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311022103 is an equidigital number, since it uses as much as digits as its factorization.

12311022103 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 12311022103 its reverse (30122011321), we get a palindrome (42433033424).

The spelling of 12311022103 in words is "twelve billion, three hundred eleven million, twenty-two thousand, one hundred three".