13211123211 has 48 divisors (see below), whose sum is σ = 22543134432. Its totient is φ = 7349875200.

The previous prime is 13211123201. The next prime is 13211123221. The reversal of 13211123211 is 11232111231.

It is an interprime number because it is at equal distance from previous prime (13211123201) and next prime (13211123221).

It is not a de Polignac number, because 13211123211 - 2⁵ = 13211123179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13211123201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 204591 + ... + 261303.

It is an arithmetic number, because the mean of its divisors is an integer number (469648634).

Almost surely, 2^13211123211 is an apocalyptic number.

13211123211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13211123211 is a deficient number, since it is larger than the sum of its proper divisors (9332011221).

13211123211 is a wasteful number, since it uses less digits than its factorization.

13211123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56924 (or 56921 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

Adding to 13211123211 its reverse (11232111231), we get a palindrome (24443234442).

The spelling of 13211123211 in words is "thirteen billion, two hundred eleven million, one hundred twenty-three thousand, two hundred eleven".