1103121233 has 4 divisors (see below), whose sum is σ = 1105102260. Its totient is φ = 1101140208.

The previous prime is 1103121223. The next prime is 1103121251. The reversal of 1103121233 is 3321213011.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46676224 + 1056445009 = 6832^2 + 32503^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103121233 - 2¹⁰ = 1103120209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103121203) 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 3 ways as a sum of consecutive naturals, for example, 989678 + ... + 990791.

It is an arithmetic number, because the mean of its divisors is an integer number (276275565).

Almost surely, 2^1103121233 is an apocalyptic number.

It is an amenable number.

1103121233 is a deficient number, since it is larger than the sum of its proper divisors (1981027).

1103121233 is an equidigital number, since it uses as much as digits as its factorization.

1103121233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1981026.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1103121233 is about 33213.2689297516. The cubic root of 1103121233 is about 1033.2555530656.

Adding to 1103121233 its reverse (3321213011), we get a palindrome (4424334244).

The spelling of 1103121233 in words is "one billion, one hundred three million, one hundred twenty-one thousand, two hundred thirty-three".