1103211 has 6 divisors (see below), whose sum is σ = 1593540. Its totient is φ = 735468.

The previous prime is 1103203. The next prime is 1103213. The reversal of 1103211 is 1123011.

It is not a de Polignac number, because 1103211 - 2³ = 1103203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 122579 = 1103211 / (1 + 1 + 0 + 3 + 2 + 1 + 1).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1103193 and 1103202.

It is not an unprimeable number, because it can be changed into a prime (1103213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61281 + ... + 61298.

It is an arithmetic number, because the mean of its divisors is an integer number (265590).

2^1103211 is an apocalyptic number.

1103211 is a deficient number, since it is larger than the sum of its proper divisors (490329).

1103211 is a wasteful number, since it uses less digits than its factorization.

1103211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122585 (or 122582 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1103211 is about 1050.3385168602. The cubic root of 1103211 is about 103.3283579521.

Adding to 1103211 its reverse (1123011), we get a palindrome (2226222).

It can be divided in two parts, 110 and 3211, that added together give a triangular number (3321 = T₈₁).

The spelling of 1103211 in words is "one million, one hundred three thousand, two hundred eleven".