13122123211 has 2 divisors, whose sum is σ = 13122123212. Its totient is φ = 13122123210.

The previous prime is 13122123181. The next prime is 13122123221. The reversal of 13122123211 is 11232122131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13122123211 - 2²³ = 13113734603 is a prime.

It is not a weakly prime, because it can be changed into another prime (13122123221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561061605 + 6561061606.

It is an arithmetic number, because the mean of its divisors is an integer number (6561061606).

Almost surely, 2^13122123211 is an apocalyptic number.

13122123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13122123211 is an equidigital number, since it uses as much as digits as its factorization.

13122123211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

Adding to 13122123211 its reverse (11232122131), we get a palindrome (24354245342).

The spelling of 13122123211 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty-three thousand, two hundred eleven".