13122123011 has 2 divisors, whose sum is σ = 13122123012. Its totient is φ = 13122123010.

The previous prime is 13122122989. The next prime is 13122123071. The reversal of 13122123011 is 11032122131.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13122123011 is a prime.

It is a super-2 number, since 2×13122123011² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13122123071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561061505 + 6561061506.

It is an arithmetic number, because the mean of its divisors is an integer number (6561061506).

Almost surely, 2^13122123011 is an apocalyptic number.

13122123011 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122123011 is an equidigital number, since it uses as much as digits as its factorization.

13122123011 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 17.

Adding to 13122123011 its reverse (11032122131), we get a palindrome (24154245142).

The spelling of 13122123011 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty-three thousand, eleven".