1103211211 has 4 divisors (see below), whose sum is σ = 1110238192. Its totient is φ = 1096184232.

The previous prime is 1103211173. The next prime is 1103211223. The reversal of 1103211211 is 1121123011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1103211211 - 2¹⁵ = 1103178443 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103211191 and 1103211200.

It is not an unprimeable number, because it can be changed into a prime (1103211251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513255 + ... + 3513568.

It is an arithmetic number, because the mean of its divisors is an integer number (277559548).

Almost surely, 2^1103211211 is an apocalyptic number.

1103211211 is a deficient number, since it is larger than the sum of its proper divisors (7026981).

1103211211 is an equidigital number, since it uses as much as digits as its factorization.

1103211211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7026980.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1103211211 is about 33214.6234511247. The cubic root of 1103211211 is about 1033.2836453967.

Adding to 1103211211 its reverse (1121123011), we get a palindrome (2224334222).

The spelling of 1103211211 in words is "one billion, one hundred three million, two hundred eleven thousand, two hundred eleven".