1051103321 has 4 divisors (see below), whose sum is σ = 1051168692. Its totient is φ = 1051037952.

The previous prime is 1051103293. The next prime is 1051103323. The reversal of 1051103321 is 1233011501.

1051103321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 57592921 + 993510400 = 7589^2 + 31520^2 .

It is a cyclic number.

It is not a de Polignac number, because 1051103321 - 2⁶ = 1051103257 is a prime.

It is a super-2 number, since 2×1051103321² = 2209636382834458082, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1051103321.

It is not an unprimeable number, because it can be changed into a prime (1051103323) 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, 10121 + ... + 46953.

It is an arithmetic number, because the mean of its divisors is an integer number (262792173).

Almost surely, 2^1051103321 is an apocalyptic number.

It is an amenable number.

1051103321 is a deficient number, since it is larger than the sum of its proper divisors (65371).

1051103321 is an equidigital number, since it uses as much as digits as its factorization.

1051103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65370.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1051103321 is about 32420.7236347371. The cubic root of 1051103321 is about 1016.7522358268.

Adding to 1051103321 its reverse (1233011501), we get a palindrome (2284114822).

The spelling of 1051103321 in words is "one billion, fifty-one million, one hundred three thousand, three hundred twenty-one".