1103121 has 12 divisors (see below), whose sum is σ = 1677520. Its totient is φ = 696600.

The previous prime is 1103119. The next prime is 1103129. The reversal of 1103121 is 1213011.

It is not a de Polignac number, because 1103121 - 2¹ = 1103119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

1103121 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1103129) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3055 + ... + 3396.

2^1103121 is an apocalyptic number.

It is an amenable number.

1103121 is a deficient number, since it is larger than the sum of its proper divisors (574399).

1103121 is a wasteful number, since it uses less digits than its factorization.

1103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6476 (or 6473 counting only the distinct ones).

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

The square root of 1103121 is about 1050.2956726560. The cubic root of 1103121 is about 103.3255480318.

Adding to 1103121 its reverse (1213011), we get a palindrome (2316132).

The spelling of 1103121 in words is "one million, one hundred three thousand, one hundred twenty-one".