13123211 has 2 divisors, whose sum is σ = 13123212. Its totient is φ = 13123210.

The previous prime is 13123207. The next prime is 13123217. The reversal of 13123211 is 11232131.

13123211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13123211 - 2² = 13123207 is a prime.

It is not a weakly prime, because it can be changed into another prime (13123217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6561605 + 6561606.

It is an arithmetic number, because the mean of its divisors is an integer number (6561606).

Almost surely, 2^13123211 is an apocalyptic number.

13123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13123211 is an equidigital number, since it uses as much as digits as its factorization.

13123211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36, while the sum is 14.

The square root of 13123211 is about 3622.5972726761. The cubic root of 13123211 is about 235.8739811263.

Adding to 13123211 its reverse (11232131), we get a palindrome (24355342).

The spelling of 13123211 in words is "thirteen million, one hundred twenty-three thousand, two hundred eleven".