13123301111 has 2 divisors, whose sum is σ = 13123301112. Its totient is φ = 13123301110.

The previous prime is 13123301071. The next prime is 13123301201. The reversal of 13123301111 is 11110332131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123301111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13123301111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123301911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561650555 + 6561650556.

It is an arithmetic number, because the mean of its divisors is an integer number (6561650556).

Almost surely, 2^13123301111 is an apocalyptic number.

13123301111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123301111 is an equidigital number, since it uses as much as digits as its factorization.

13123301111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 13123301111 its reverse (11110332131), we get a palindrome (24233633242).

The spelling of 13123301111 in words is "thirteen billion, one hundred twenty-three million, three hundred one thousand, one hundred eleven".