1223103211 has 6 divisors (see below), whose sum is σ = 1344402836. Its totient is φ = 1111911900.

The previous prime is 1223103209. The next prime is 1223103221. The reversal of 1223103211 is 1123013221.

It is not a de Polignac number, because 1223103211 - 2¹ = 1223103209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223103221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5054025 + ... + 5054266.

Almost surely, 2^1223103211 is an apocalyptic number.

1223103211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1223103211 is a deficient number, since it is larger than the sum of its proper divisors (121299625).

1223103211 is a wasteful number, since it uses less digits than its factorization.

1223103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10108313 (or 10108302 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1223103211 is about 34972.8925169194. The cubic root of 1223103211 is about 1069.4349393683.

Adding to 1223103211 its reverse (1123013221), we get a palindrome (2346116432).

It can be divided in two parts, 122310 and 3211, that added together give a palindrome (125521).

The spelling of 1223103211 in words is "one billion, two hundred twenty-three million, one hundred three thousand, two hundred eleven".