13123022111 has 2 divisors, whose sum is σ = 13123022112. Its totient is φ = 13123022110.

The previous prime is 13123022089. The next prime is 13123022179. The reversal of 13123022111 is 11122032131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13123022111 - 2⁶ = 13123022047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13123022111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13123022411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561511055 + 6561511056.

It is an arithmetic number, because the mean of its divisors is an integer number (6561511056).

Almost surely, 2^13123022111 is an apocalyptic number.

13123022111 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123022111 is an equidigital number, since it uses as much as digits as its factorization.

13123022111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13123022111 its reverse (11122032131), we get a palindrome (24245054242).

The spelling of 13123022111 in words is "thirteen billion, one hundred twenty-three million, twenty-two thousand, one hundred eleven".