1040113321 has 4 divisors (see below), whose sum is σ = 1120122052. Its totient is φ = 960104592.

The previous prime is 1040113307. The next prime is 1040113387. The reversal of 1040113321 is 1233110401.

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 656384400 + 383728921 = 25620^2 + 19589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1040113321 - 2²⁹ = 503242409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1040113295 and 1040113304.

It is not an unprimeable number, because it can be changed into a prime (1040113021) 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, 40004346 + ... + 40004371.

It is an arithmetic number, because the mean of its divisors is an integer number (280030513).

Almost surely, 2^1040113321 is an apocalyptic number.

It is an amenable number.

1040113321 is a deficient number, since it is larger than the sum of its proper divisors (80008731).

1040113321 is an equidigital number, since it uses as much as digits as its factorization.

1040113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80008730.

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

The square root of 1040113321 is about 32250.7879128557. The cubic root of 1040113321 is about 1013.1962012775.

Adding to 1040113321 its reverse (1233110401), we get a palindrome (2273223722).

The spelling of 1040113321 in words is "one billion, forty million, one hundred thirteen thousand, three hundred twenty-one".