912111231322111 has 2 divisors, whose sum is σ = 912111231322112. Its totient is φ = 912111231322110.

The previous prime is 912111231322087. The next prime is 912111231322133. The reversal of 912111231322111 is 111223132111219.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 912111231322111 - 2¹¹ = 912111231320063 is a prime.

It is a super-2 number, since 2×912111231322111² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (912111231328111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 456055615661055 + 456055615661056.

It is an arithmetic number, because the mean of its divisors is an integer number (456055615661056).

Almost surely, 2^{912111231322111} is an apocalyptic number.

912111231322111 is a deficient number, since it is larger than the sum of its proper divisors (1).

912111231322111 is an equidigital number, since it uses as much as digits as its factorization.

912111231322111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 31.

The spelling of 912111231322111 in words is "nine hundred twelve trillion, one hundred eleven billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred eleven".